DEPLOYABLE FOOTWEAR AND METHOD OF ALTERING A CONFIGURATION OF A COLLAPSIBLE SOLE TO A COMPACT FORM

Abstract

A deployable footwear with a collapsible sole and a method for changing its configuration. The sole is made up of a top sheet, a bottom sheet, and one or more support elements in between. It can be compressed into a compact form by folding these elements, which brings the top and bottom sheets closer together. To erect the sole for wear, a stopper element can be used to hold the support elements in an open, stable position. The footwear may also have a removable upper portion. The application also details an alternative design using a telescopic sole with nested segments, as well as a removable folded sheet with a zig-zag or rhombus pattern for internal support.

Claims

1. A collapsible footwear comprising: a collapsible sole having a top sheet and a bottom sheet, the top sheet and the bottom sheet configured to reversibly assume a corrugated shape; a plurality of corrugations formed in the collapsible sole, the plurality of corrugations including interior folds and exterior folds; a plurality of lateral elements connecting the interior folds to the exterior folds; a longitudinally extending channel formed between an anterior portion and a posterior portion of the collapsible sole, the longitudinally extending channel further formed between the top sheet and the bottom sheet; at least one stopper element insertable into the longitudinally extending channel; wherein the collapsible sole is reversibly transitionable between a collapsed configuration and an erected configuration.

2. The collapsible footwear of claim 1, wherein in the erected configuration, the at least one stopper element is insertable into the longitudinally extending channel and stabilizes the collapsible sole in an open conformation such that the top sheet and the bottom sheet assume an essentially straight shape.

3. The collapsible footwear of claim 1, wherein in the collapsed configuration, the longitudinally extending channel is collapsible such that the plurality of lateral elements are disposable adjacently to one another.

4. The collapsible footwear of claim 1, wherein in the erected configuration, an angle formable between the interior folds and the exterior folds is an essentially straight angle.

5. The collapsible footwear of claim 1, wherein in the collapsed configuration, an angle formable between the interior folds and the exterior folds is an essentially acute angle.

6. The collapsible footwear of claim 1, wherein the at least one stopper element embodies a shape of an extendible telescopic cylindrical assembly.

7. The collapsible footwear of claim 1, wherein the longitudinally extending channel extends along an entire length of the collapsible sole.

8. The collapsible footwear of claim 1, further comprising a removable top part.

9. The collapsible footwear of claim 8, wherein the removable top part comprises a plurality of connecting elements connectable with the collapsible sole for reversibly connecting the collapsible sole with the removable top part.

10. The collapsible footwear of claim 9, wherein the collapsible sole comprises a plurality of securing apertures, each securing aperture receivable of a corresponding connecting element of the removable top part.

11. The collapsible footwear of claim 1, wherein the collapsible sole comprises an exterior surface and an interior surface, both the exterior surface and the interior surface comprising the plurality of corrugations.

12. The collapsible footwear of claim 1, wherein the at least one stopper element is disposable between the top sheet and the bottom sheet.

13. The collapsible footwear of claim 1, wherein in the erected configuration, the top sheet and the bottom sheet assume an essentially planar shape.

14. The collapsible footwear of claim 8, wherein the removable top part is readily connectable to and disconnectable from the collapsible sole.

15. The collapsible footwear of claim 1, wherein the collapsible footwear is transportable in a compact form when in the collapsed configuration.

16. The collapsible footwear of claim 1, wherein the at least one stopper element comprises a plurality of stopper elements, each stopper element insertable into the longitudinally extending channel.

17. The collapsible footwear of claim 1, wherein the collapsible sole is stabilizable in the erected configuration by the at least one stopper element preventing collapse of the longitudinally extending channel.

18. A collapsible footwear comprising: a collapsible sole embodying a telescopic assembly, the telescopic assembly comprising a plurality of structural segments; each structural segment of the plurality of structural segments comprising an anterior portion and a posterior portion; each structural segment comprising a longitudinally extending channel formed between the anterior portion and the posterior portion and between a top side and a bottom side of the structural segment; wherein the collapsible sole is reversibly transitionable between a collapsed configuration and an erected configuration; wherein in the collapsed configuration, the anterior portions of adjacent structural segments are disposable adjacently to each other and the posterior portions of adjacent structural segments are disposable adjacently to each other, with the structural segments telescopable within adjacent structural segments.

19. The collapsible footwear of claim 18, wherein in the erected configuration, the plurality of structural segments are spaceable apart from each other such that the posterior portion of each structural segment is spaceable apart from the posterior portion of an adjacent structural segment, and the anterior portion of each structural segment is spaceable apart from the anterior portion of an adjacent structural segment.

20. The collapsible footwear of claim 18, wherein the plurality of structural segments comprises five structural segments including a first structural segment, a second structural segment, a third structural segment, a fourth structural segment, and a fifth structural segment.

21. The collapsible footwear of claim 20, wherein in the collapsed configuration: the first structural segment is telescopable within the longitudinally extending channel of the second structural segment; the second structural segment is telescopable within the longitudinally extending channel of the third structural segment; the third structural segment is telescopable within the longitudinally extending channel of the fourth structural segment; and the fourth structural segment is telescopable within the longitudinally extending channel of the fifth structural segment.

22. The collapsible footwear of claim 18, wherein each structural segment comprises an exterior contour that is racetrack-shaped.

23. The collapsible footwear of claim 18, wherein each structural segment comprises an exterior contour that is foot-like shaped.

24. The collapsible footwear of claim 18, further comprising a removable top part.

25. The collapsible footwear of claim 24, wherein the removable top part comprises a plurality of connecting elements connectable with the collapsible sole for connecting the collapsible sole with the removable top part.

26. The collapsible footwear of claim 25, wherein the connecting elements are readily connectable to and disconnectable from the collapsible sole.

27. The collapsible footwear of claim 25, wherein the collapsible sole comprises a plurality of securing apertures, each connecting element of the removable top part connectable to a corresponding securing aperture of the collapsible sole.

28. The collapsible footwear of claim 24, wherein the removable top part is attachable to the telescopic assembly in the erected configuration to restrict the telescopic assembly from returning to the collapsed configuration.

29. The collapsible footwear of claim 25, wherein at least one connecting element is connectable to a first structural segment and at least one different connecting element is connectable to a second structural segment.

30. The collapsible footwear of claim 18, wherein the top side faces upwardly relative to the collapsible sole and the bottom side faces downwardly relative to the collapsible sole.

31. The collapsible footwear of claim 18, wherein the collapsible footwear is transportable in a compact form when in the collapsed configuration.

32. The collapsible footwear of claim 18, wherein the longitudinally extending channel is alternatively definable as an interior lumen.

33. The collapsible footwear of claim 20, wherein all structural segments other than the fifth structural segment are containable at least partially within the fifth structural segment when in the collapsed configuration.

34. The collapsible footwear of claim 18, wherein the structural segments are made of resilient material reversibly bendable upon application of vertical load.

Description

DESCRIPTION OF THE DRAWINGS

[0074] The present invention will be understood and appreciated more comprehensively from the following detailed description taken in conjunction with the appended drawings in which:

[0075] FIG. 1A is a perspective view of a collapsible sole of a collapsible footwear with at least one stopper element, according to an embodiment of the present invention;

[0076] FIG. 1B is an enlarged perspective view of a collapsible sole of a collapsible footwear with at least one stopper element, according to an embodiment of the present invention;

[0077] FIG. 1C is a perspective view of a collapsible sole in an erected configuration, according to an embodiment of the present invention;

[0078] FIG. 1D is a perspective view of a collapsible sole in a collapsed configuration, according to an embodiment of the present invention;

[0079] FIG. 1E is an enlarged perspective view of a collapsible sole in a collapsed configuration, according to an embodiment of the present invention;

[0080] FIG. 2A is a perspective view of a collapsible sole in collapsed and folded configurations, according to some embodiment of the present invention;

[0081] FIG. 2B is an enlarged perspective view of a collapsible sole in collapsed and folded configurations, according to some embodiment of the present invention;

[0082] FIG. 2C is a perspective view of a collapsible sole in a partially collapsed configuration, according to some embodiment of the present invention;

[0083] FIG. 2D is a perspective view of a collapsible sole in a partially collapsed configuration, according to some embodiment of the present invention;

[0084] FIG. 2E is a perspective view of a collapsible sole in a partially erected configuration, according to some embodiment of the present invention;

[0085] FIG. 2F is a perspective view of a collapsible sole in an erected configuration, according to some other embodiment of the present invention;

[0086] FIG. 2G is a perspective view of a stopper element in a deployed configuration, according to some embodiment of the present invention;

[0087] FIG. 2H is a perspective view of a stopper element in a collapsed configuration, according to some embodiment of the present invention;

[0088] FIG. 2I is a perspective view of a stopper element positioned for insertion into a collapsible sole, according to some embodiment of the present invention;

[0089] FIG. 2J is a perspective view of a stopper element installed within a collapsible sole, according to some embodiment of the present invention;

[0090] FIG. 3A is a perspective view of a collapsible sole in an erected configuration and a top part, according to some embodiment of the present invention;

[0091] FIG. 3B is an enlarged perspective view of a collapsible sole in an erected configuration, according to some embodiment of the present invention;

[0092] FIG. 3C is a perspective view of a collapsible sole in a partially collapsed configuration, according to some embodiment of the present invention;

[0093] FIG. 3D is an enlarged perspective view of a collapsible sole in a partially collapsed configuration, according to some embodiment of the present invention;

[0094] FIG. 3E is a perspective view of a collapsible sole in a completely collapsed configuration, according to some embodiment of the present invention;

[0095] FIG. 3F is an enlarged perspective view of a collapsible sole in a completely collapsed configuration, according to some embodiment of the present invention;

[0096] FIG. 4A is a perspective view of a collapsible sole in a completely collapsed configuration, according to some embodiment of the present invention;

[0097] FIG. 4B is a perspective view of a collapsible sole in a partially collapsed configuration, according to some embodiment of the present invention;

[0098] FIG. 4C is a perspective view of a collapsible sole in an erected configuration and a top part, according to some embodiment of the present invention;

[0099] FIG. 4D is a perspective view of a telescopic collapsible footwear in assembled configuration with a removable upper covering element attached, according to an embodiment of the present invention;

[0100] FIG. 4E is an exploded perspective view of the telescopic collapsible footwear showing the removable upper covering element separated from the telescopic platform segments, according to an embodiment of the present invention;

[0101] FIG. 4F is a perspective view of a telescopic collapsible footwear with separated upper and lower flat parts of the upper covering element, according to another embodiment of the present invention;

[0102] FIG. 4G is a perspective view showing the separated upper and lower flat parts in rolled configuration for storage, according to an embodiment of the present invention;

[0103] FIG. 4H is an exploded perspective view of a telescopic collapsible footwear with three-piece upper covering element including separate upper flat part, lower flat part, and curved midfoot portion, according to another embodiment of the present invention;

[0104] FIG. 4I is an exploded perspective view of a telescopic collapsible footwear showing filled platform segments with receiving cavity, according to an embodiment of the present invention.

[0105] FIG. 5A is a perspective view of a collapsible sole in a collapsed configuration, according to some embodiment of the present invention;

[0106] FIG. 5B is a perspective view of a collapsible sole in an erected configuration, according to some embodiment of the present invention;

[0107] FIG. 6 is a perspective view of a collapsible sole in an erected configuration, according to some embodiment of the present invention;

[0108] FIG. 7 is a flowchart of a method of altering a configuration of a collapsible footwear into a compact form, configured for transportation, according to another embodiment of the present invention;

[0109] FIG. 8A is a perspective view of a removable folded sheet in a folded configuration showing a rhombus fold pattern, according to another embodiment of the present invention;

[0110] FIG. 8B is a perspective view of a removable folded sheet in a deployed configuration with separated front and rear sections showing a rhombus fold pattern, according to the embodiment of FIG. 8A;

[0111] FIG. 8C is a perspective view of the removable folded sheet of FIGS. 8A-8B installed within a cavity of a support structure, according to the embodiment of the present invention;

[0112] FIG. 8D is a perspective view of a removable folded sheet in a folded configuration showing a zig-zag fold pattern, according to another embodiment of the present invention;

[0113] FIG. 8E is a perspective view of the removable folded sheet in a deployed configuration showing the zig-zag fold pattern with angular peaks and valleys, according to the embodiment of FIG. 8D;

[0114] FIG. 8F is a perspective view of the removable folded sheet of FIGS. 8D-8E installed within a cavity of a support structure, according to the embodiment of the present invention.

[0115] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown merely by way of example in the drawings. The drawings are not necessarily complete and components are not essentially to scale; emphasis instead being placed upon clearly illustrating the principles underlying the present invention.

DETAILED DISCLOSURE OF EMBODIMENTS

[0116] Illustrative embodiments of the invention are described below. In the interest of clarity, not all features of actual implementation are described in this specification. It should be appreciated that various features or elements described in the context of some embodiment may be interchangeable with features or elements of any other embodiment described in the specification. Moreover, it will be appreciated that for the development of any actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with technology- or business related constraints, which may vary from one implementation to another, and the effort of such a development might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure. In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 1A to 1E, showing collapsible sole 10 of a collapsible footwear, configured for transportation in a compact and/or portable form. The collapsible sole of the embodiment of FIG. 1A to 1E illustrates various features that may be interchangeable with elements of any other embodiment described in the specification.

[0117] In some embodiments, collapsible sole 10 comprises top sheet 12. Top sheet 12 extends essentially across entire surface area of collapsible sole 10. Top sheet 12 typically comprises a pliable or pliant polymeric material.

[0118] In some embodiments, collapsible sole 10 further comprises bottom sheet 14. Bottom sheet 14 extends essentially across entire surface area of collapsible sole 10. Bottom sheet 14 typically comprises a pliable or pliant polymeric material. In some embodiments, collapsible sole 10 further comprises plurality of lateral support elements 16. Support elements 16 extend in-between top sheet 12 and bottom sheet 14. In some embodiments, the plurality of lateral support elements 16 extend essentially along an entire width of collapsible sole 10. Support elements 16 typically comprise a pliable or pliant polymeric material.

[0119] In some embodiments, collapsible sole 10 further comprises a plurality of laterally extending channels 18. The plurality of laterally extending channels 18 are formed in-between lateral support elements 16 and in-between top sheet 12 and bottom sheet 14. In some embodiments, collapsible sole 10 further comprises plurality of top hinge elements 20. Top hinge elements 20 operationally connect top sheet 12 with the plurality of respective lateral support elements 16 of collapsible sole 10. In some embodiments, top hinge elements 20 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 16 relative to top sheet 12. Top hinge elements 20 are typically manufactured by a polymeric welding and/or thermoplastic molding.

[0120] In some embodiments, collapsible sole 10 further comprises plurality of bottom hinge elements 22. Bottom hinge elements 22 operationally connect bottom sheet 14 with a plurality of respective lateral support elements 16 of collapsible sole 10. In some embodiments, bottom hinge elements 22 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 16 relative to bottom sheet 14. Bottom hinge elements 22 are typically manufactured by a polymeric welding and/or thermoplastic molding.

[0121] In some embodiments, collapsible sole 10 further comprises at least one stopper element 24. At least one stopper element 24 typically comprises a rigid material. At least one stopper element 24 is disposable between top sheet 12 and bottom sheet 14. In some examples, at least one stopper element 24 embodies shape of rectangular profile. In some embodiments, at least one stopper element 24 embodies a shape congruent to at least one of laterally extending channel 18. In some embodiments, at least one stopper element 24 is insertable within at least one of laterally extending channel 18 and retrievable from at least one laterally extending channel 18.

[0122] In some embodiments, collapsible sole 10 is characterized by reversibly assuming a collapsed configuration shown in FIGS. 1D and 1E. Collapsible sole 10 is shown in FIGS. 1D and 1E in a collapsed configuration. In the collapsed configuration of FIGS. 1D and 1E, laterally extending channels 18 are essentially collapsed, thereby forming an acute angle between lateral support elements 16 and top sheet 12 and bottom sheet 14, thereby allowing top sheet 12 to be brought into the proximity relative to bottom sheet 14.

[0123] In some embodiments, collapsible sole 10 is characterized by reversibly assuming an erected configuration shown in FIG. 1A to 1C. Collapsible sole 10 is shown in FIG. 1A to 1C in an erected configuration. In some embodiments, in erected configuration, lateral support elements are disposed essentially perpendicularly to top sheet 12 and bottom sheet 14, thereby rendering the former spaced apart from the latter parallel. In some embodiments, in erected configuration, at least one stopper element 24 stabilizes laterally extending channels 18 in an open conformation, whilst top sheet 12 is spaced from bottom sheet 14. In some embodiments, collapsible sole 10 further comprises at least one top part. An exemplary top part 210 is shown in FIG. 4C. In some examples, the top part is collapsible, whereas in other examples the top part is a modular and/or removable top part. In some embodiments, the top part further comprises a plurality of connecting elements. The connecting elements of the top part, such as connecting elements 212 of top part 210 is shown in FIG. 4C, are configured for readily connecting collapsible sole 10 with the top part. In some embodiments, collapsible sole 10 further comprises a plurality of connecting elements. The connecting elements, such as connecting elements 214 of collapsible sole 200 is shown in FIG. 4C, are configured for readily connecting collapsible sole 10 with least the top part.

[0124] In some embodiments, in the collapsed configuration, plurality of laterally extending channels 18 of collapsible sole 10 are collapsed along a vertical axis and across a vertical plane of collapsible sole 10. In some embodiments, in the collapsed configuration, collapsible sole 10 maintains an essentially planar shape and substantially constant lengths along the longitudinal axis and across a horizontal plane of collapsible sole 10, perpendicular to the vertical plane. In some embodiments, the in collapsed configuration collapsible sole 10 maintains an essentially constant width along the transversal axis and across a horizontal plane of collapsible sole 10, perpendicular to the vertical plane.

[0125] In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 2A to 2F, showing another embodiment of collapsible sole 50. The collapsible sole of the embodiment of FIG. 2A to 2F illustrates various features that may be interchangeable with elements of any other embodiment described in the specification. In some embodiments, collapsible sole 50 comprises top sheet 52. Top sheet 52 extends essentially across entire surface area of collapsible sole 50. Top sheet 52 typically comprises a pliable or pliant polymeric material. In some embodiments, top sheet 52 comprises frontal portion 52A and rear portion 52B. In some embodiments, collapsible sole 50 further comprises bottom sheet 54. Bottom sheet 54 extends essentially across the entire surface area of collapsible sole 50. In some embodiments, bottom sheet 54 comprises frontal portion 54A and rear portion 54B.

[0126] In some embodiments, collapsible sole 50 further comprises a plurality of lateral support elements 56. In some embodiments, lateral support elements 56 extend in between top sheet 52 and bottom sheet 54. In some embodiments, lateral support elements 56 extend essentially along an entire width of collapsible sole 50. Support elements 56 typically comprise a pliable or pliant polymeric material.

[0127] In some embodiments, collapsible sole 50 further comprises plurality of laterally extending channels 58. Laterally extending channels 58 are formed in-between lateral support elements 56 and in-between top sheet 52 and bottom sheet 54.

[0128] In some embodiments, collapsible sole 50 further comprises plurality of top hinge elements 60. Top hinge elements 60 operationally connecting top sheet 52 with the respective lateral support elements 56 of collapsible sole 50. Top hinge elements 60 are typically manufactured by a polymeric welding and/or thermoplastic molding. In some embodiments, top hinge elements 60 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 56 relative to top sheet 52.

[0129] In some embodiments, collapsible sole 50 further comprises plurality of bottom hinge elements 62. Plurality of bottom hinge elements 62 operationally connecting bottom sheet 54 and plurality of lateral support elements 56 of collapsible sole 50. In some embodiments, plurality of bottom hinge elements 62 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 56 relative to bottom sheet 54. Bottom hinge elements 62 are typically manufactured by a polymeric welding and/or thermoplastic molding. In some embodiments, collapsible sole 50 further comprises at least one stopper element 64. At least one stopper element 64 typically comprises a rigid material. At least one stopper element 64 is disposable between top sheet 52 and bottom sheet 54. In some examples, at least one stopper element 64 embodies an elongated trapezoid shape. In some embodiments, collapsible sole 50 further comprises centrical potion 68. In some embodiments, at least one stopper element 64 at centrical portion 68 of collapsible sole 50. In some embodiments, collapsible sole 50 is characterized by reversibly assuming a collapsed configuration, shown in FIGS. 2A and 2B, as well as an erected configuration, shown in FIG. 2F. In some embodiments, collapsible sole 50 assumes a collapsed configuration, shown in FIGS. 2A and 2B, in which laterally extending channels 58 are essentially collapsed, thereby forming an acute angle between plurality of lateral support elements 56 and top sheet 52 and bottom sheet 54, as well as bringing top sheet 52 into proximity with bottom sheet 54. In some embodiments, collapsible sole 50 assumes an erected configuration, shown in FIG. 2F. In some embodiments, at least one stopper element 64 stabilizes laterally extending channels 58 in an open conformation, whereas top sheet 52 is spaced from bottom sheet 54.

[0130] In some embodiments, collapsible sole 50 further comprises at least one top pat. In some examples, the top part is a collapsible top part whereas in other examples the top part is a removable top part. In some embodiments, the top part further comprises a plurality of connecting elements. The connecting elements are configured for readily connecting collapsible sole 50 with the top part. In some embodiments, centrical portion 68 of collapsible sole 50 accommodates a mechanism rendering collapsible sole 50 configured to further assume a folded configuration and an unfolded configuration. In some embodiments, in a folded configuration, bottom sheet 54 of collapsible sole 50 is folded about centrical portion 68, so that frontal portion 54A of bottom sheet 54 is disposed adjacently to rear portion 54B of bottom sheet 54. In some embodiments, in a folded configuration, posterior top hinge elements 70A and 70B are spaced apart from top portion 72 of trapezoid shape 66. In some embodiments, in an unfolded configuration, bottom sheet 54 of collapsible sole 50 is straightened into an essentially planar shape, so that frontal portion 54A of bottom sheet 54 forms an approximately straight angle relative to rear portion 54B of bottom sheet 54. In some embodiments, in a folded configuration, posterior top hinge elements 70A and 70B are adjoined to top portion 72 of trapezoid shape 66, of stopper element 64. In some embodiments, in the collapsed configuration, plurality of laterally extending channels 58 of collapsible sole 50 are collapsed along a vertical axis and across a vertical plane of collapsible sole 50. In some embodiments, in the collapsed configuration, collapsible sole 50 maintains an essentially planar shape and substantially constant lengths along the longitudinal axis and across a horizontal plane of collapsible sole 50, perpendicular to the vertical plane. In some embodiments, the in collapsed configuration collapsible sole 50 maintains an essentially constant width along the transversal axis and across a horizontal plane of collapsible sole 50, perpendicular to the vertical plane.

[0131] Reference is now made to FIGS. 2G to 2J showing various embodiments of a stopper element 1400 for collapsible footwear. The stopper element 1400 is designed for insertion into lateral channels 18 of a collapsible sole 10 as previously described.

[0132] The stopper element 1400 comprises a central structure 1402 from which at least two arms 1404 extend. As shown in the drawings, the illustrated embodiment includes four arms 1404a, 1404b, 1404c, 1404d extending from the central structure 1402. Each arm 1404 has a proximal end 1406 and a distal end 1408. The proximal end 1406 of each arm 1404 is pivotally connected to the central structure 1402 through a pivotal connection 1410.

[0133] The pivotal connection 1410 enables each arm 1404 to rotate between a collapsed configuration, shown in FIG. 2H, and a deployed configuration, shown in FIG. 2G. In the collapsed configuration, the arms 1404a, 1404b, 1404c, 1404d are arranged substantially parallel to each other, creating a compact linear profile. In the deployed configuration, the four arms 1404a, 1404b, 1404c, 1404d extend radially outward from the central structure 1402 at substantially 90-degree intervals.

[0134] The central structure 1402 comprises an elongated body 1412 that extends along a longitudinal axis 1414. The elongated body 1412 is configured for resilient deformation under compressive load, allowing it to function as a cushioning element during use. While the specific material properties that enable this resilient deformation are not shown in the drawings, the elongated nature of the central structure 1402 facilitates controlled bending along its length.

[0135] Each arm 1404 includes a tapered portion 1416 at its distal end 1408. The tapered portion 1416 defines a flat abutment surface 1418 configured to contact an inner surface of the lateral channel 18 when the arm 1404 is in the deployed configuration. As visible in the drawings, the tapered portion 1416 defines both an upper flat abutment surface 1418a and a lower flat abutment surface 1418b. These surfaces are positioned to contact the top inner surface and bottom inner surface of the lateral channel 18 respectively.

[0136] In the illustrated four-arm embodiment, the collapsed configuration shows a specific folding arrangement. A first pair of arms 1404a, 1404b is folded in a first direction while a second pair of arms 1404c, 1404d is folded in a second direction opposite to the first direction. This arrangement creates the compact profile visible in FIG. 2H.

[0137] The pivotal connection 1410 may be implemented as a living hinge (not shown in detail) integrally formed between each arm 1404 and the central structure 1402, or alternatively as a mechanical hinge (not shown). The specific implementation of the pivotal connection 1410 is not detailed in the drawings but enables the rotation between configurations.

[0138] While not explicitly shown in the drawings, each arm 1404 has a rigidity greater than the rigidity of the central structure 1402. This differential rigidity allows the arms 1404 to maintain structural integrity while the central structure 1402 provides cushioning through elastic deformation.

[0139] The dimensional relationships between the collapsed and deployed configurations are evident from the drawings. In the collapsed configuration shown in FIG. 2H, the maximum cross-sectional dimension of the stopper element 1400 is substantially reduced compared to the deployed configuration shown in FIG. 2G. Specifically, the maximum cross-sectional dimension in the collapsed configuration is less than 50% of the maximum cross-sectional dimension in the deployed configuration.

[0140] FIG. 2I shows the stopper element 1400 positioned for insertion into a collapsible sole 10. The collapsible sole 10 includes a top sheet 12, a bottom sheet 14, and a plurality of lateral support elements 16 extending between the top sheet 12 and bottom sheet 14. The laterally extending channels 18 are formed between adjacent lateral support elements 16. The stopper element 1400 is shown in its collapsed configuration, ready for insertion into one of the channels 18.

[0141] FIG. 2J illustrates the stopper element 1400 after installation within the collapsible sole 10. The stopper element 1400 is disposed within at least one of the laterally extending channels 18, with the arms 1404 in their deployed configuration. In this state, the flat abutment surfaces 1418 of the arms 1404 engage the inner surfaces of the channel 18, preventing collapse of the sole structure.

[0142] During use of the collapsible footwear, compressive forces applied to the top sheet 12 are transmitted through the upper flat abutment surfaces 1418a to the arms 1404. These forces travel through the rigid arms 1404 to the central structure 1402, which undergoes resilient deformation to provide cushioning. The forces are then transmitted through the lower arms to the lower flat abutment surfaces 1418b and ultimately to the bottom sheet 14.

[0143] The stopper element 1400 maintains the erected configuration of the collapsible sole 10 by preventing the lateral support elements 16 from collapsing. The multi-directional support provided by the four arms 1404a, 1404b, 1404c, 1404d enables stability regardless of the direction of applied load during various phases of walking or standing.

[0144] In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 3A to 3F showing another embodiment of collapsible sole 100. The collapsible sole of the embodiment of FIG. 3A to 3F illustrates various features that may be interchangeable with elements of any other embodiment described in the specification. In some embodiments, collapsible sole 100 comprises top sheet 102. Top sheet 102 extends essentially across entire surface area of collapsible sole 100. In some embodiments, collapsible sole 100 further comprises bottom sheet 104. Bottom sheet 104 extends essentially across entire surface area of collapsible sole 100. Top sheet 102 and bottom sheet 104 typically comprise a pliable or pliant polymeric material.

[0145] In some embodiments, collapsible sole 100 further comprises a plurality of lateral support elements 106. Lateral support elements 106 extend between top sheet 102 and bottom sheet 104. In some embodiments, Lateral support elements 106 extend essentially along an entire width of collapsible sole 100. In some embodiments, collapsible sole 100 further comprises a plurality of laterally extending channels 108. Laterally extending channels 108 are formed in-between lateral support elements 106 and in-between top sheet 102 and bottom sheet 104. In some embodiments, collapsible sole 100 further comprises a plurality of top hinge elements 110. Top hinge elements 110 operationally connect top sheet 102 to respective lateral support elements 106 of collapsible sole 100. In some embodiments, plurality of top hinge elements 110 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 106 relative to top sheet 102. In some embodiments, collapsible sole 100 further comprises a plurality of bottom hinge elements 112. Plurality of bottom hinge elements 112 operationally connect bottom sheet 104 to respective lateral support elements 106 of collapsible sole 100. In some embodiments, bottom hinge elements 112 are configured to sustain angular bending and/or partial rotation of respective lateral support elements 106 relative to bottom sheet 104.

[0146] In some embodiments, collapsible sole 100 further comprises at least one stopper element 114. At least one stopper element 114 is disposable between top sheet 102 and bottom sheet 114. At least one stopper element 114 comprises an essentially linear shape 66. In some preferred embodiments, each one of laterally extending channels 108 accommodates an individual stopper element 114. In some preferred embodiments, each one stopper elements 114 extend along an entire width of collapsible sole 100. In some preferred embodiments, some stopper elements 114 comprise top stopper hinge portion 116 forming a connection with top sheet 112 of collapsible sole 100, whereas other stopper elements 114 comprise bottom stopper hinge portion 118 forming a connection with bottom sheet 114. In some embodiments, stopper elements 114 are accommodated with laterally extending channels 108 and connected to top sheet 102 of collapsible sheet 100 by top stopper hinge portions 116. In some embodiments, stopper element 114 are accommodated within other laterally extending channels 108 and connected to bottom sheet 104 of collapsible sheet 100 by bottom stopper hinge portions 118.

[0147] In some embodiments, collapsible sole 100 comprises a composite material and/or structure, in which top sheet 102 and bottom sheet 104 comprise a pliant and/or flexible material, such as synthetic woven fabric, whereas lateral support elements 106 and/or stopper elements 114 comprise firm and/or rigid material, such as rigid polymeric

plates and/or segments, which are enclosed within and/or fused with a pliant and/or flexible material, such as synthetic woven fabric, thereby conferring exceptional foldability to top hinge elements 110 and bottom hinge elements 112, whilst concomitantly conferring superb firmness to lateral support elements 106 and/or stopper elements 114. In some embodiments, collapsible sole 100 comprises an assembly and/or construct of pars, in which top sheet 102 and bottom sheet 104 comprise a pliant and/or flexible material, such as synthetic woven fabric, whereas additionally corresponding pouches are formed from a pliant and/or flexible material, such as synthetic woven fabric for lateral support elements 106 and/or stopper elements 114. In such embodiments, lateral support elements 106 and/or stopper elements 114 comprise firm and/or rigid material, such as, rigid polymeric and/or even metallic plates, which are insertable into and or retrievable from within the aforementioned corresponding pouches that are formed from a pliant and/or flexible material, thereby conferring exceptional foldability to top hinge elements 110 and bottom hinge elements 112, whilst concomitantly conferring superb firmness to lateral support elements 106 and/or stopper elements 114.

[0148] It should be acknowledged that the implementation of the novel and innovative shape and/or composite material and/or structure and/or assembly and/or construct of pars, of collapsible sole 100, as well as the implementations of the shape and/or composite material and/or structure and/or assembly and/or construct of pars of any other collapsible sole described in this specification hereinabove and/or hereunder, as a collapsible sole for collapsible footwear is merely exemplary and is not limited to collapsible soles or collapsible footwear. Whereas, the implementation of the novel and innovative shape and/or composite material and/or structure and/or assembly and/or construct of pars, of collapsible sole 100, as well as the implementations of the shape and/or composite material and/or structure and/or assembly and/or construct of pars of any other collapsible sole described in this specification hereinabove and/or hereunder, equally include numerous implementations embodying various other products, such as collapsible sheeting of indefinite lengths and/or widths and/or surface area and/or height and/or thickness, which are expediently applicable and implementable in a vast variety of products, in a non-limiting manner including: collapsible matting, collapsible rugs, collapsible carpet, collapsible thermally insulating sheeting or any product for that matter.

[0149] In some embodiments, collapsible sole 100 is characterized by reversibly assuming a collapsed configuration and an erected configuration. In some embodiments, in a collapsed configuration, shown in FIGS. 3E and 3F, lateral support elements 106 form an approximately straight angle with adjacent lateral support elements 106. In some embodiments, in an erected configuration, stopper elements 114 connected to top sheet 102 are driven downwardly and/or brought to bottom sheet 104. In some embodiments, in an erected configuration, stopper elements 114 connected to bottom sheet 104 are driven upwardly and/or brought to top sheet 102. to be spaced from bottom sheet 104.

[0150] In some embodiments, in a collapsed configuration, shown in FIGS. 3E and 3F, top sheet 102 of collapsible sole 100 assumes a corrugated shape. In some embodiments, in a collapsed configuration, top sheet 102 is folded about top stopper hinge portions 116, forming an approximately acute angle first portions 120 of top sheet 102 and second portions 122 of top sheet 102. In some embodiments, in a collapsed configuration, top sheet 102 is folded about top stopper hinge portions 116, so that first portions 120 of top sheet 102 and second portions 122 of top sheet 102 are disposed essentially adjointly to stopper elements 114. In some embodiments, in a collapsed configuration, first portions 120 of top sheet 102 and second portions 122 of top sheet 102 are folded about top stopper hinge portions 116, so that first portions 120 and second portions 122 of top sheet 102 form an approximately acute angle relative to stopper elements 114.

[0151] In some embodiments, in a collapsed configuration, bottom sheet 104 of collapsible sole 100 assumes a corrugated shape. In some embodiments, in a collapsed configuration, bottom sheet 104 is folded about bottom stopper hinge portions 118, forming an approximately acute angle first portions 124 of bottom sheet 102 and second portions 126 of bottom sheet 104. In some embodiments, in a collapsed configuration, bottom sheet 104 is folded about bottom stopper hinge portions 118, so that first portions 124 of bottom sheet 104 and second portions 126 of bottom sheet 104 are disposed essentially adjointly to stopper elements 114. In some embodiments, in a collapsed configuration, first portions 124 of bottom sheet 104 and second portions 126 of bottom sheet 104 are folded about bottom stopper hinge portions 118, so that first portions 124 and second portions 126 of bottom sheet 104 form an approximately acute angle relative to stopper elements 114.

[0152] In some embodiments, collapsible sole 100 assumes an erected configuration. In an erected configuration, shown in FIGS. 3A and 3B, at least one stopper element 114 stabilizes laterally extending channels 108 in an open conformation. In an erected configuration, shown in FIGS. 3A and 3B, top sheet 52 and bottom sheet 104 assume a straight and/or planar form. In some embodiments, collapsible sole 100 further comprises at least one top pat 128. In some examples, at least one top part 128 is a collapsible top part and/or a removable top part. In some embodiments, top part 128 further comprises plurality of connecting elements 130. Connecting elements 130 are configured for readily connecting collapsible sole 100 with top part 128 and readily disconnecting collapsible sole 100 from top part 128. Each of connecting elements 130 of top part 128 is connectable to a corresponding connecting element, such as securing aperture 132, of collapsible sole 100, thereby securing top part 128 with collapsible sole 100.

[0153] In some embodiments, in the collapsed configuration, plurality of laterally extending channels 108 of collapsible sole 100 are collapsed along a longitudinal axis and across a horizontal plane of collapsible sole 100. In some embodiments, in the collapsed configuration, plurality of laterally extending channels 108 of collapsible sole 100 are collapsed along a vertical axis and across a vertical plane of collapsible sole 100. In some embodiments, in the collapsed configuration, collapsible sole 100 assumes an essentially corrugated shape and maintains substantially constant width along the transversal axis of the horizontal plane of collapsible sole 10. In accordance with some preferred embodiments of the present invention, reference is now to FIG. 4A to 4C showing yet another embodiment of collapsible sole 200 of a collapsible footwear. The collapsible sole of the embodiment of FIG. 4A to 4C illustrates various features that may be interchangeable with elements of any other embodiment described in the specification. In some embodiments, collapsible sole 200 comprises top side 202. Top side 202 faces upwardly, relative to collapsible sole 200. In some embodiments, collapsible sole 200 further comprises bottom side 204. Bottom side 204 faces downwardly, relative to collapsible sole 200.

[0154] In some embodiments, collapsible sole 200 embodies a telescopic assembly. The telescopic assembly of collapsible sole 200 comprises a plurality of structural segments 206. The exterior contour of structural segments 206 is optionally racetrack-shaped and foot-like shaped. In some embodiments, each one of plurality of structural segments 206 comprises anterior portion 208 and posterior portion 210. In some embodiments, each one of plurality of structural segments 206 of collapsible sole 200 further comprises a longitudinally extending channel or interior lumen. The longitudinally extending channel of each one of plurality of structural segments 206 is formed in-between anterior portion 208 and posterior portion 210 and in-between top side 202 and side sheet 204. In some embodiments, collapsible sole 200 is characterized by reversibly assuming a collapsed configuration and an erected configuration. In some embodiments, in a collapsed configuration, shown in FIG. 4A, anterior portions 208 of structural segments 206 are disposed adjacently to each other, whereas posterior portion 210 are disposed adjacently to each other, whilst structural segments 206 are telescoped and accommodated within adjacent sections 206. For instance, in a collapsed configuration, shown in FIG. 4A, posterior portion 210 of first structural segment 206 is adjacent to posterior portion 210 of adjacent structural segment 206, whereas anterior portion 208 of first structural segment 206 is adjacent to anterior portion 208 of adjacent structural segment 208.

[0155] In an erected configuration, shown in FIG. 4A, the plurality of structural segments 206 are spaced apart from each other, so that posterior portion 210 of structural segment 206 is spaced apart from posterior portion 210 of adjacent structural segment 206, whereas anterior portion 208 of structural segment 206 is spaced apart from anterior portion 208 of adjacent structural segment 208. In some examples, collapsible sole 200 comprises five structural segments 206A, 206B, 206C, 206D and 206E. In a collapsed configuration, first structural segment 206A telescopes within the laterally extending channel of second structural segment 206B. Similarly, second structural segment 206B telescopes within the laterally extending channel of third structural segment 206C. Second structural segment 206C telescopes within the laterally extending channel of forth structural segment 206D, which is in turn telescoped within the laterally extending channel of fifth structural segment 206E. In some embodiments, collapsible sole 200 further comprises top pat 210. In some examples, top part 210 is a removable top part. In some embodiments, top part 210 further comprises a plurality of connecting elements 212. Connecting elements 212 are configured for readily connecting collapsible sole 200 with top part 210 and readily disconnecting collapsible sole 200 from top part 210. Each of connecting elements of top part 210 is connectable to a corresponding connecting element, such as securing aperture 214, of collapsible sole 200, thereby securing top part 210 with collapsible sole 200. Reference is now made to FIGS. 4D to 4I showing various embodiments of telescopic collapsible footwear with removable upper covering elements according to the present invention.

[0156] As shown in FIG. 4D, the collapsible footwear comprises a telescopic sole assembly with first platform segment 202 supporting the heel region and second platform segment 204 supporting the forefoot region. A removable upper covering element 1210 is attached to the platform segments in the assembled configuration. The upper covering element 1210 comprises an upper flat part, a lower flat part, and a curved portion connecting these flat parts at the front end. An elevated midfoot support portion 1211 extends upwardly from the upper flat part, positioned to secure the foot at the instep area. The curved front portion creates a toe box while leaving the heel area open for easy foot entry.

[0157] FIG. 4E shows an exploded view with the upper covering element 1210 separated from the platform segments 202, 204. Attachment apertures 1214 in the platform segments align with securing points 1212 on the covering element.

[0158] FIG. 4F shows an alternative embodiment where the upper covering element comprises separate, disconnected upper and lower flat parts 1210a and 1210b. These components can be attached independently to the platform segments, allowing greater modularity. FIG. 4G demonstrates the storage configuration of these separated components, with both the upper flat part 1210a and lower flat part 1210b shown in rolled/scrolled configurations. This separated design enables more compact storage and independent replacement of worn components.

[0159] FIG. 4H presents an exploded view of a further embodiment where the upper covering comprises three separate components: upper flat part 1210a, lower flat part 1210b, and curved midfoot portion 1210c. This three-piece design supports modularity by allowing independent selection of materials and styles for each component.

[0160] FIG. 4I shows an exploded view highlighting the internal construction of the telescopic platform segments. Cross-hatching indicates filled body construction in both platform segments 202, 204. The first platform segment 202 is entirely filled, while the second platform segment 204 comprises a filled body with a cavity 1218 formed therein. The cavity 1218 is specifically sized to receive the entire first platform segment 202 during telescopic collapse. This design achieves compactness while maintaining structural integrity through the filled construction. The filled bodies may comprise materials engineered for comfort and bounciness characteristics.

[0161] Throughout these embodiments, the telescopic sole assembly enables transition between extended and collapsed configurations through relative movement of platform segments 202, 204. The removable upper covering elements, whether single-piece or multi-piece, attach via the alignment of apertures 1214 with securing points 1212. The modular design philosophy evident in FIGS. 4D-4I allows users to customize their footwear through different upper configurations while maintaining the same telescopic sole base. The progression from connected upper to separated components to three-piece construction demonstrates increasing modularity options.

[0162] The filled platform construction shown in FIG. 4I addresses structural and comfort requirements while enabling the compact telescopic action through the cavity and insert design. This construction method can be implemented with any of the upper covering configurations shown in the other figures. In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 5A to 6, showing still another embodiment of the invention, showing collapsible sole 300 of a collapsible footwear. The collapsible sole of the embodiment of FIG. 5A and SC illustrates various features that may be interchangeable with elements of any other embodiment described in the specification. In some embodiments, collapsible sole 300 comprises top sheet 302 and bottom sheet 304. In some embodiments, top sheet 302 and bottom sheet 304 of collapsible sole 300 are configured for reversibly assuming a corrugated shape. In some embodiments, exterior surface 306 and interior surface 308 of collapsible sole 300 further comprise a plurality of corrugations, including interior folds 310 and exterior folds 312. Interior folds 306 are connected to exterior folds 312 by a plurality of lateral elements 314. In some embodiments, collapsible sole 200 further comprises longitudinally extending channel 316. Longitudinally extending channel 316 extends along an entire length of collapsible sole 300. Longitudinally extending channel 316 of collapsible sole 300 is formed in-between anterior portion 318 and posterior portion 320 of collapsible sole 200 and in-between top sheet 302 and bottom sheet 304 of collapsible sole 200. In some embodiments, collapsible sole 300 further comprises at least one stopper element 322, shown in FIG. 6. At least one stopper element 322 is disposable between top sheet 302 and bottom sheet 304. In some examples, at least one stopper element 322 embodies the shape of extendible telescopic cylindrical assembly. In some embodiments, at least one stopper element 322 is insertable into longitudinally extending channel 316 of collapsible sole 300. In some embodiments, collapsible sole 300 is characterized by reversibly assuming a collapsed configuration and an erected configuration. In some embodiments, in an erected configuration, at least one stopper element 322 inserted into longitudinally extending channel 316 and stabilizes collapsible sole 300 in an open conformation, so that top sheet 302 and bottom sheet 304 assume an essentially straight and/or planar shape. In some embodiments, in an erected configuration, the angle formed between interior folds 310 to exterior folds 312 is an essentially straight angle.

[0163] In some embodiments, in a collapsed configuration, longitudinally extending channel 316 is collapsed, so that lateral support elements 314 are adjacent disposed adjointly one to another. In some embodiments, in a collapsed configuration, the angle formed between interior folds 310 to exterior folds 312 is an essentially acute angle.

[0164] In some embodiments, collapsible sole 200 further comprises top pat 324. In some examples, top part 324 is a removable top part. In some embodiments, top part 324 further comprises a plurality of connecting elements 326. In some embodiments, connecting elements 326 are configured for readily connecting collapsible sole 300 with top part 324 and readily disconnecting collapsible sole 300 from top part 324. Each of connecting elements of top part 324 is connectable to a corresponding connecting element, such as securing aperture 328, of collapsible sole 300, thereby facilitating the reversibly securing of top part 324 to collapsible sole 300.

[0165] Reference is now made to FIGS. 8A to 8F showing various embodiments of a removable folded sheet for use with collapsible footwear. The removable folded sheet of the embodiments of FIGS. 8A to 8F illustrates various features that may be interchangeable with elements of any other embodiment described in the specification.

[0166] In accordance with some preferred embodiments of the present invention, reference is now made to FIGS. 8A and 8D showing folded sheets 1600 and 1602 respectively in a folded configuration. FIGS. 8A and 8D show different embodiments of folded sheets from different viewing angles. In the folded configuration, folded sheets 1600 and 1602 are compressed into a compact form suitable for insertion into or removal from a cavity 1606 of a support structure 1608.

[0167] Folded sheet 1600 comprises a repeating fold pattern. In some embodiments, as shown in FIG. 8B, the repeating fold pattern comprises a rhombus pattern. The rhombus pattern forms diamond-shaped sections 1622 when folded sheet 1600 is in a deployed configuration. In other embodiments, as shown in FIGS. 8D and 8E, folded sheet 1602 comprises a repeating fold pattern in a zig-zag configuration. The zig-zag pattern creates a series of angular peaks 1614 and valleys 1616 when folded sheet 1602 is in a deployed configuration.

[0168] As shown in FIGS. 8B and 8E, folded sheets 1600 and 1602 include end elements 1624 and 1626 respectively, having a half-pattern configuration of their respective repeating fold patterns. In the rhombus pattern embodiment of FIG. 8B, end elements 1624 comprise half-rhombus shapes. In the zig-zag pattern embodiment of FIG. 8E, end elements 1626 comprise partial peaks or valleys.

[0169] In some embodiments, as particularly shown in FIG. 8B, folded sheet 1600 comprises a front section 1632 and a rear section 1634. Rear section 1634 has a greater width than front section 1632. This width differential accommodates the natural tapering of footwear from heel to toe. In the embodiment of FIG. 8B, front section 1632 is shown separated from rear section 1634, illustrating that these sections can be separable components.

[0170] Reference is now made to FIGS. 8C and 8F showing folded sheets 1600 and 1602 positioned within cavity 1606 of support structure 1608. In some embodiments, support structure 1608 comprises a telescopic assembly having a plurality of interlocking segments 1638. The telescopic assembly is configured to transition between an extended configuration and a compressed configuration.

[0171] Cavity 1606 is defined within support structure 1608 and is dimensioned to receive folded sheets 1600 or 1602. In some embodiments, cavity 1606 tapers from a rear portion 1642 to a front portion 1644, accommodating typical shoe sole geometry. When folded sheet 1600 or 1602 is positioned within cavity 1606 in a deployed configuration, it provides vertical support to support structure 1608.

[0172] FIG. 8C shows rhombus pattern folded sheet 1600 installed within cavity 1606, while FIG. 8F shows zig-zag pattern folded sheet 1602 installed within cavity 1606. In both configurations, folded sheets 1600 and 1602 expand to fill cavity 1606 and provide structural support while maintaining the ability to compress when support structure 1608 transitions to its compressed configuration.

[0173] In some embodiments, folded sheets 1600 and 1602 comprise a flexible polymeric material. The material selection enables repeated transitions between folded and deployed configurations without permanent deformation.

[0174] The removable nature of folded sheets 1600 and 1602 is illustrated by comparing FIGS. 8A-8B and 8D-8E (showing folded sheets 1600 and 1602 before insertion) with FIGS. 8C and 8F (showing folded sheets 1600 and 1602 after insertion into cavity 1606). This removability allows users to clean, replace, or interchange different folded sheets having different support characteristics.

[0175] In some embodiments, support structure 1608 further comprises the collapsible sole elements described in the parent application, including lateral support elements, channels, and hinge elements that work in conjunction with the removable folded sheet system.

[0176] In accordance with some embodiments of the present invention, reference is now made FIG. 7 showing flowchart of method 400 of altering a configuration of a collapsible footwear into a compact form, configured for transportation. The method of the embodiment of FIG. 7 illustrates various features that may be interchangeable with elements of any other embodiment described in the specification. In some embodiments, method 400 commences at step 402 of providing a collapsible sole. In some embodiments, the collapsible sole comprises a top sheet, extending essentially across entire surface area of the sole and a bottom sheet, extending essentially across entire surface area of the sole. In some embodiments, the collapsible sole comprises further comprises a plurality of lateral support elements, extending in-between the top sheet and the bottom sheet, in which the lateral support elements extend essentially along an entire width of the sole.

[0177] In some embodiments, the collapsible sole further comprises a plurality of laterally extending channels formed in-between the lateral support elements and in-between the top and bottom sheets. In some embodiments, the collapsible sole further comprises a plurality of top and bottom hinge elements operationally connecting the top and bottom sheet to the respective of lateral support elements of the collapsible sole, in which the top and bottom hinge elements are configured to sustain a partial rotation of the plurality of lateral support elements relative to the top and bottom sheet. In some embodiments, the collapsible sole further comprises at least one stopper element disposable between the upper sheet and the bottom sheet.

[0178] In some embodiments, the collapsible sole is essentially similar to collapsible soles 10, 50, 100, 200 and/or 300, shown in FIG. 1A to 6 and described hereinabove. In some embodiments, step 402 further comprises inserting at least one stopper element within said at least one of laterally extending channel, allowing the collapsible sole to be in an erected configuration. In some embodiments, method 400 comprises step 404 of providing at least one top part. In some embodiments, the top part is a collapsible top part and/or a removable top part. In some embodiments, step 404 of providing at least one top part further comprises the step of connecting the collapsible sole with the top part.

[0179] In some embodiments, method 400 further includes step 406 of compressing the collapsible sole to assume a collapsed configuration, in which the plurality of laterally extending channels is essentially collapsed and the top sheet is brought into proximity with the bottom sheet and/or the top sheet and the bottom sheet assume a corrugated form or conformation. In some embodiments, step 406 further comprises step of forming an essentially acute angle between the plurality of lateral support elements and the top and bottom sheet and/or between interior folds and exterior folds of the collapsible sole, facilitating bringing the top sheet into proximity with the bottom sheet and/or the top sheet and the bottom sheet assuming a corrugated form or conformation and thereby rendering the collapsible sole collapsed and/or compressed. In some embodiments, method 400 further comprises step 408 of altering a configuration of the collapsible sole to assume an erected configuration, in which at least one stopper element stabilizes the plurality of laterally extending channels in an open conformation, whereas the top sheet is spaced apart from the bottom sheet and/or top sheet and bottom sheet assume an essentially straight and/or planar form. In some embodiments, the collapsible sole comprises a frontal portion, a centrical portion and a rear portion, such as in the embodiments shown in FIG. 2A to 2F. In such embodiments, step 406 of method 400 that includes compressing the collapsible sole to assume a collapsed configuration, optionally further includes the folding the collapsible sole to assume a folded configuration, in which in the collapsed configuration, the bottom sheet of the collapsible sole is folded about the centrical portion, so that a frontal portion of the bottom sheet is disposed adjacently to a rear portion of the bottom sheet.

[0180] In such embodiments, step 408 of method 400 that includes altering the configuration of the collapsible sole to assume an erected configuration, optionally further includes the altering a configuration of the collapsible sole to assume an unfolded configuration, in which in the unfolded configuration, the bottom sheet of the collapsible sole is straightened, so that the frontal portion of the bottom sheet forming an approximately straight angle relative to the rear portion of the bottom sheet. In some embodiments, the centrical portion accommodates at least one stopper element comprising an essentially trapezoid shape, such as in the embodiments shown in FIG. 2A to 2F. In such embodiments, step 406 of method 400 that includes compressing the collapsible sole to assume a collapsed configuration, optionally further includes the folding the collapsible sole to assume a folded configuration, in which in the folded configuration, the posterior top hinge elements are spaced apart from a top portion of the trapezoidally shaped stopper element.

[0181] In some embodiments, step 408 of method 400 that includes altering the configuration of the collapsible sole to assume an erected configuration, optionally further includes the step of altering a configuration of the collapsible sole to assume an unfolded configuration, in which in the unfolded configuration, the top hinge elements are adjoined to the top portion of the trapezoid shape.

[0182] It will be appreciated by persons skilled in the art of the invention that various features and/or elements elaborated in the context of a specific embodiment described hereinabove and/or referenced herein and/or illustrated by a particular example in a certain drawing enclosed hereto, whether method, system, device or product, is/are interchangeable with features and/or elements of any other embodiment described in the specification and/or shown in the drawings.