Heeled footwear such as a shoe or boot including a sole assembly and a heel part may be provided. In one implementation, the heel part may include an insert formed in a first material. The insert may include a core body delimited by an upper surface, a lower bottom surface, and an outer surface connecting the upper and lower surfaces. At least a part of the outer surface may be encased in a second material different from the first material. The outer material may form an outer contour layer of the heel part, and the sole assembly may include an outsole formed in the second material, the second material being softer than the first material. The outsole and the outer contour layer may be designed to be formed in one piece providing an outer sole unit being one component.

A shoe including a component formed at least in part from a recycled thermoplastic material is disclosed. The recycled thermoplastic material may be derived from scrap material from an operation of making another component of the shoe. The recycled thermoplastic material may be derived at least in part from scrap thermoplastic foam from an operation of making a sole component of the shoe, but the shoe component including the recycled thermoplastic material may have a density greater than that of the sole component. Both shoe components may be bio-based. Methods for making shoe components including the recycled thermoplastic material are also disclosed.

A shoe including a component formed at least in part from a recycled thermoplastic material is disclosed. The recycled thermoplastic material may be derived from scrap material from an operation of making another component of the shoe. The recycled thermoplastic material may be derived at least in part from scrap thermoplastic foam from an operation of making a sole component of the shoe, but the shoe component including the recycled thermoplastic material may have a density greater than that of the sole component. Both shoe components may be bio-based. Methods for making shoe components including the recycled thermoplastic material are also disclosed.

A heel pad made of a viscoelastic polymer that absorbs shocks and prevents impact related injuries through a low, truncated profile that enables a user to continue to use the original insole. The viscoelastic polymer provides adhesive properties that adheres a rear portion of the original insole to the inside of the shoe, while the leading edge is adjacent between the calcaneus or the heel bone and the tuberosity of the fifth metatarsals during use.

A heel pad made of a viscoelastic polymer that absorbs shocks and prevents impact related injuries through a low, truncated profile that enables a user to continue to use the original insole. The viscoelastic polymer provides adhesive properties that adheres a rear portion of the original insole to the inside of the shoe, while the leading edge is adjacent between the calcaneus or the heel bone and the tuberosity of the fifth metatarsals during use.

An interchangeable heel device for a shoe is disclosed. The device has an upper base and a key. The upper base has a receiving recess that is configured to be located in a heel area of a shoe below an insole of the shoe. The key is for attaching to an upper side of a heel of a shoe. The key is movable within the receiving recess between a released position and an engaged position. In the engaged position each key first engagement portion is engaged with one of the receiving first engagement portions and each key second engagement portions is engaged with one of the receiving second engagement portions to join the key to the perimeter and the heel to the sole. In the released position each key first engagement portion is aligned with one of the receiving recessed regions and the key is removable from the receiving recess.

A shoe comprising a sole and an upper secured to the sole. The sole has a lower sole member, a heel member, a shank member, a heel cushion, and a foot pad. The heel member extends downwardly from the lower sole member. The heel member includes a heel outer peripheral surface and an open top heel cavity. The lower sole member includes a top surface and a lower sole cavity extending downwardly from the top surface. The shank member has a shank midfoot portion and a shank heel portion. The shank midfoot portion is in the lower sole cavity and the shank heel portion is in the heel cavity. The heel cushion is in the heel cavity. The shank heel portion is sandwiched between the heel cushion and the heel member.

A multi-part sole and heel assembly is provided. The multi-part sole and heel assembly may be embodied as an apparatus or assembly, having a sole portion and a heel portion. The multi-part sole and heel assembly may include a soft sole second layer applied to an inner surface of a first outermost sole layer, wherein the soft sole second layer further comprises a soft sole landing area configured to provide comfort for a foot and displace sounds and impact force effects during a step.

A multi-part sole and heel assembly is provided. The multi-part sole and heel assembly may be embodied as an apparatus or assembly, having a sole portion and a heel portion. The multi-part sole and heel assembly may include a soft sole second layer applied to an inner surface of a first outermost sole layer, wherein the soft sole second layer further comprises a soft sole landing area configured to provide comfort for a foot and displace sounds and impact force effects during a step.

A polyurethane elastomer foam material includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a prepolymer of 1,4-bis(isocyanatomethyl)cyclohexane (A1) and polyetherdiol (A2) having a straight chain oxyalkylene group with carbon atoms of 3 to 4 as a main chain, and the polyol component (B) contains macropolyol (B1) containing 90 mass % or more of polyetherdiol having a straight chain oxyalkylene group with carbon atoms of 3 to 4 as a main chain, and alkanepolyol (B2) having a. straight chain or branched alkylene group with carbon atoms of 2 to 6.