An article of footwear includes a sole structure that has a front midsole component and a rear midsole component. A connecting member connects the front midsole component to the rear midsole component. The connecting member defines a groove at a lower side of the sole structure between the front midsole component and the rear midsole component. The front midsole component and the rear midsole component are pivotable relative to one another at the groove between a use position and an access position. Confronting surfaces of the connecting member at the groove are closer to one another in the access position than in the use position so that the groove is relatively open in the use position, and the groove is relatively closed in the access position.

An immobility system for a free-fall environment includes an immobility device including at least one suction cup configured to engage the immobility device to a surface, and a valve that, when activated, results in release of the at least one suction cup from engagement with the surface. A remote controller is spaced apart from the valve and is configured to selectably transmit an activation signal to the valve. An immobility device includes at least one suction cup configured to engage the immobility device to a surface, and a valve that, when activated, results in release of the at least one suction cup from engagement with the surface. A receiver at the device is configured to receive an activation signal and activate the valve.

An article of footwear, including one or more interchangeable upper portions, the upper portion including loops on a bottom portion of the upper portion, a sole, the sole having engagement points around a perimeter of the sole, wherein the engagement points in the sole allow the loops to be inserted and/or removed; at least two spring lock systems, the spring lock systems located in the perimeter of the sole, wherein the spring lock systems include a spring, a flexible shaft, a lock and a spring plate, the lock and the spring plate being located in the engagement points, wherein the loops of the one or more upper portions to the sole engage with the lock and spring plate to secure and/or release the loops in position; and two or more sets of buttons on the sole to release or engage the spring lock system.

Sole structures, foot support systems, articles of footwear, and/or other foot-receiving devices include: (a) a first footwear component having a ground-facing surface, wherein a forefoot portion of the ground-facing surface includes arched medial and lateral surfaces and (b) a second footwear component having an upper-facing surface, wherein a forefoot portion of the upper-facing surface includes arched medial and lateral surfaces that face (and optionally contact) the respective arched medial and lateral surfaces of the first footwear component. The first and second footwear components are movably engaged together such that: (a) the arched medial surface of the first footwear component moves with respect to and along the arched medial surface of the second footwear component and (b) the arched lateral surface of the first footwear component moves with respect to and along the arched lateral surface of the second footwear component.

A customizable therapeutic or occupational shoe sole and methods of producing the shoe sole are provided. The shoe sole includes an outsole, a midsole made from a shock absorptive material and an energy returner integrated with the midsole via an opening in the midsole. The energy returner includes a front lever arm secured to a front bottom recess of the midsole and includes a rear lever arm secured to a rear top recess of the midsole. The rear lever arm includes a lever arm joint for coupling the rear lever arm to the front lever arm. In some embodiments, shoe sole includes an adjustable base to enhance body mass control of the subject via a plantar flexor tendon, thereby customizing for unique biomechanics by relocating the adjustable base relative to the rear lever arm.

A convertible shoe intended for use by babies and young children. Acknowledging that there is very little wear on the soles of the shoes for children learning to walk because of their weight and the few steps they take, this shoe has interchangeable upper shoes that can be mated to a common sole. It saves the cost of buying complete shoes, which can get expensive for growing feet. Rather, one can buy multiple decorative upper shoes to unite with a common sole, at a cost savings. Additionally, this offers a simpler way to put shoes on babies and insure that their toes are not jammed or feet twisted.

A shoe having one or more detachable and/or interchangeable outsoles is provided herein. The shoe may include a sole, a rear outsole (e.g., a stiletto, a wedge, etc.), and a forward outsole (e.g., a platform, etc.). The sole may be generally configured to support a wearer's foot, with the rear outsole being detachably coupled to a rear portion of the sole and the forward outsole being detachably coupled to a forward portion of the sole. By having two detachable outsoles (e.g., a detachable rear outsole and a detachable forward outsole), the shape, style, and design of the shoe can be varied/changed.

A convertible high heel and flat shoe, comprising a sole including a heel section; and a high heel piece positionable between a high heel mode where the high heel piece supports the heel section and a flat shoe mode where the high heel piece is received within the sole.

A footwear sole with an interchangeable outsole, where the sole is divided into at least two parts; an upper part or midsole (2) fixed to the body of the footwear, and an interchangeable lower part or outsole (3) that is removably attached to the fixed midsole by means of a mechanical dovetail attachment system (4a, 4b) of the lower side of the fixed midsole (2) to the upper side of the interchangeable outsole, enabling the replacement of the same by another similar outsole or another different outsole, either with a different type of surface (3a), and/or a different height, and/or with a different structure and/or a different appearance, such as colour, texture and/or material.

Footwear including a sole and an upper, wherein the sole includes a bottom surface, suitable for contacting the ground during use, and a sidewall that extends from the bottom surface and is placed at the outer periphery of the sole, wherein the upper is removable attachable to the sole whereby obtaining the footwear. The present invention further discloses a method for assembling the footwear.