A shoe system includes a sole and a shoe upper connected with the sole. A gap is disposed between a first upper portion and a second upper portion. The shoe system also includes a first permanent connector permanently connected to the first upper portion; a second permanent connector permanently connected to the second upper portion, and a removable and printable connector strap connectable with the shoe upper. First and second releasable connector portions of the removable and printable connector strap are releasably connectable with the first and second permanent connectors, respectively.

Nonslip shower footwear for preventing slippage in showers includes a first shoe that comprises a sole. The sole has a top layer and a bottom layer, which are mutually coupled along their respective perimeters to define an interior space that comprises a gel. A plurality of grips is coupled to and extends from the bottom layer. The grips are tackified to prevent slippage. A shell is coupled to the perimeter of the top layer. The shell and the sole define an internal space that is complimentary to the foot of the user. An entry is positioned in the shell proximate to a first end of the sole for insertion of the user's foot. A plurality of openings is positioned in the shell for water to flow into and drain from the internal space. The footwear includes a second shoe that is a mirror image of the first shoe.

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim at least partially defining an outer perimeter of the ground-engaging component and an open space at least at a forefoot support area, wherein the outer perimeter boundary rim defines an upper-facing surface and an opposite ground-facing surface; and (b) a forefoot edge support extending along and defining at least a portion of a first forefoot edge of the ground-engaging component. A bottom surface of the forefoot edge support (which may engage the ground) slants in an outward and downward direction from a location adjacent the open space toward the first forefoot edge. In some shoe pairs, the forefoot edge supports may be provided on a lateral forefoot side edge of one shoe, e.g., the right shoe, and on a medial forefoot side edge of the other shoe, e.g., the left shoe. The ground-engaging component(s) further may have “directional traction” features designed to support plant and rotation of the different feet when running a curve (e.g., on a curved or banked track).

An article with a sole structure including a first layer and a second layer are disclosed. The first layer includes a set of apertures arranged in an auxetic configuration that permit the first layer to exhibit a first auxetic behavior. The second layer includes a set of projections arranged in an auxetic configuration that permit the second layer to exhibit a second auxetic behavior. The first layer and the second layer may be joined together in a manner that allows the first auxetic behavior to occur independently of the second auxetic behavior.

An article with a sole structure including a first layer and a second layer are disclosed. The first layer includes a set of apertures arranged in an auxetic configuration that permit the first layer to exhibit a first auxetic behavior. The second layer includes a set of projections arranged in an auxetic configuration that permit the second layer to exhibit a second auxetic behavior. The first layer and the second layer may be joined together in a manner that allows the first auxetic behavior to occur independently of the second auxetic behavior.

Sports boot comprising: an inner boot (3); an exogenous shell (1), the dimensions of which allow said inner boot (3) to be inserted into or extracted from it, said exogenous shell strengthening said inner boot and allowing it to be attached to a piece of sports equipment; wherein said exogenous shell comprises a sole (10), a forward part of an upper (11) able to pivot with respect to said sole (10) about a first articulation (110), and a rear part of an upper (12) which is able to pivot with respect to said sole (10) about a second articulation (120).

A running shoe includes an upper coupled to a sole structure. The sole structure includes a midsole and an outsole. The outsole wraps around a sole structure such that it contacts the midsole. The outer surface of the outsole includes a series of treads or traction elements extending along the bottom and sides of the outsole. With this configuration, when the sole structure contacts an uneven topography, the outsole conforms around the topography, stabilizing the footwear during use.

A footwear construction including a support cage that wraps an upper to provide an adaptive fit to accommodate a variety of foot shapes and to adapt to changes in foot shape during a gait cycle, while providing exceptional stability and support. The footwear can include an upper, a support cage and a sole assembly. The upper can be joined with the sole assembly and can include an exterior. The sole assembly can define a recess extending across a width of the sole assembly from a medial side to a lateral side. The support cage can be constructed from a semi-rigid but flexible polymeric material, disposed over the exterior of the upper and free floating relative to the exterior of the upper. The support cage can include a sole bridge that extends transverse to a longitudinal axis of the footwear, through the recess defined by the sole assembly.

An impact absorbing footwear device employs opposed planar sole portions engaged by a selective resistance coupling that biases the opposed planar sole portions in a non-linear manner in response to forces exerted by the wearer against the sole portion in frictional contact with a floor surface. The planar sole portions are disposed in a footwear appliance that takes the form of an athletic shoe sole. The selective resistance coupling includes a plurality of resilient deformation members that engage the planar sole portions in an opposed circumferentially aligned manner, selectively deform in response to pressure exerted by the wearer for preventing ACL and other impact related injuries, and recover to an undeformed rest position without breakaway to allow the wearer uninterrupted usage while dampening forces that surpass an injury threshold from the resilient deformation that allows the planar sole portions to temporarily misalign.

An impact absorbing footwear device employs opposed planar sole portions engaged by a selective resistance coupling that biases the opposed planar sole portions in a non-linear manner in response to forces exerted by the wearer against the sole portion in frictional contact with a floor surface. The planar sole portions are disposed in a footwear appliance that takes the form of an athletic shoe sole. The selective resistance coupling includes a plurality of resilient deformation members that engage the planar sole portions in an opposed circumferentially aligned manner, selectively deform in response to pressure exerted by the wearer for preventing ACL and other impact related injuries, and recover to an undeformed rest position without breakaway to allow the wearer uninterrupted usage while dampening forces that surpass an injury threshold from the resilient deformation that allows the planar sole portions to temporarily misalign.