A footwear system comprising an external chassis comprising a flexible upper attached to a molded cushion and grip component further comprising a molded midsole, a plurality of interchangeable internal cushion and fit components that fit inside the external chassis and are held in place by an interference fit, wherein the internal cushion and fit components comprise different morphologies and can be replaced by the user without the use of any tools.

A footwear system comprising an external chassis comprising a flexible upper attached to a molded cushion and grip component further comprising a molded midsole, a plurality of interchangeable internal cushion and fit components that fit inside the external chassis and are held in place by an interference fit, wherein the internal cushion and fit components comprise different morphologies and can be replaced by the user without the use of any tools.

Multilayer insoles made of several layers of polymeric materials and used for insertion into footwear, for example, for hygienic and orthopedic purposes. Multilayer insoles having increased manufacturability, absorption properties and low cost of environmentally friendly raw materials obtained from renewable sources.

Multilayer insoles made of several layers of polymeric materials and used for insertion into footwear, for example, for hygienic and orthopedic purposes. Multilayer insoles having increased manufacturability, absorption properties and low cost of environmentally friendly raw materials obtained from renewable sources.

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

Improved cushioning elements for sports apparel, in particular for soles for sports shoes, are described. A cushioning element for sports apparel with a first deformation element is provided. The deformation element includes a plurality of randomly arranged particles of an expanded material, wherein there are first voids within the particles and/or between the particles.

Improved cushioning elements for sports apparel, in particular for soles for sports shoes, are described. A cushioning element for sports apparel with a first deformation element is provided. The deformation element includes a plurality of randomly arranged particles of an expanded material, wherein there are first voids within the particles and/or between the particles.