[Problem] To provide a shoe insole that can inherently maintain appropriate meshing with foot joints at a high level. [Solution] A sheet section, disposed on the entire base of a shoe, and a support plate, formed from a material harder than the sheet section are provided. The sheet section and the support plate each comprises an inner curved surface section, curved in an arch shape with an end section standing upward, an outer wall section, curved in an arch shape, with an end section standing upward, and a central wall section, formed between the inner wall section and the outer wall section. The support plate comprises an inner ridge section, formed on the boundary between the inner wall section and the central wall section, and an outer ridge section, formed on the boundary between the outer wall section and the central wall section. A plurality of through-holes, arranged in the longitudinal direction of the support plate, are formed in the inner wall section and the outer wall section of the support plate. At least an upper surface of the central wall section located between the inner ridge section and the outer ridge section is curved so as to draw an arch in the longitudinal direction of the support plate.

An inner sole board having varying regions of flexibility is provided for use in an article of footwear. The inner sole board may include different materials along its length at different locations that vary its flexibility. An inner sole board is manufactured in an injection molding process requiring only one mold. The process includes a first step of providing a mold, a second step of providing an injection molding assembly, a third step of preparing an injection molding assembly and mold, a fourth step of injecting material into the mold, and a fifth step of establishing the dimensions of a first portion. During the injection molding process, the flow rate of at least one material may be controlled by a nozzle gate to control the shape and size of the flex zone it creates. In this manner, the inner sole board may be customized for a specific sport or individual.

An inner sole board having varying regions of flexibility is provided for use in an article of footwear. The inner sole board may include different materials along its length at different locations that vary its flexibility. An inner sole board is manufactured in an injection molding process requiring only one mold. The process includes a first step of providing a mold, a second step of providing an injection molding assembly, a third step of preparing an injection molding assembly and mold, a fourth step of injecting material into the mold, and a fifth step of establishing the dimensions of a first portion. During the injection molding process, the flow rate of at least one material may be controlled by a nozzle gate to control the shape and size of the flex zone it creates. In this manner, the inner sole board may be customized for a specific sport or individual.

An insole is provided. This insole features a front end, a thickness, a top surface, a bottom surface, a heel receiving portion having a first end and a second end, a lateral longitudinal arch support section which has a width, and a medial longitudinal arch support section. Preferably, the medial longitudinal arch support section is made up of a partial spherical cap which has a radius and a height, and the medial longitudinal arch support section runs from the first end of said heel receiving portion to the lateral longitudinal arch support section.

An insole is provided. This insole features a front end, a thickness, a top surface, a bottom surface, a heel receiving portion having a first end and a second end, a lateral longitudinal arch support section which has a width, and a medial longitudinal arch support section. Preferably, the medial longitudinal arch support section is made up of a partial spherical cap which has a radius and a height, and the medial longitudinal arch support section runs from the first end of said heel receiving portion to the lateral longitudinal arch support section.

A process can be used for recycling foams based on thermoplastic polyurethane.

A process can be used for recycling foams based on thermoplastic polyurethane.

This document discloses antistatic shoe insoles that include a flexible foam layer and antistatic filaments of textile material interspersed throughout the foam layer and extending passed or exposed at the surface of the shoe insole and methods of making such an antistatic shoe insole. The antistatic filaments are needle punched through the foam layer. The antistatic filaments may be any suitable antistatic material blended with any felt fiber such as wool fiber, cotton fiber, polyester fiber, or the like.

This document discloses antistatic shoe insoles that include a flexible foam layer and antistatic filaments of textile material interspersed throughout the foam layer and extending passed or exposed at the surface of the shoe insole and methods of making such an antistatic shoe insole. The antistatic filaments are needle punched through the foam layer. The antistatic filaments may be any suitable antistatic material blended with any felt fiber such as wool fiber, cotton fiber, polyester fiber, or the like.

An arch cookie includes a heel portion, a pair of arch supports extending from the heel portion toward a toe region, the pair of arch supports being of unequal length, the heel portion and the pair of arch supports being continuous, and at least one window disposed in at least one of the heel portion and the pair of arch supports.