Patent ID: 11678715

Abstract:
An insole and/or outsole for a shoe such as an athletic shoe or cleat that includes a multilayer channeled assembly designed at preventing the transfer of heat from extremely hot ground surfaces, most notably synthetic turf, to the foot. In one embodiment, the insole includes a channeled layer of solid material with a very low thermal conductivity, preferably silicon or cork, as the base material beneath a layer of heat resistant felt preferably made of oxidized polyacrylonitrile fibers. The channeling in the base layer allows for air pockets to be created within the insole itself that makes the heat resistant felt more resistant to (i.e., more efficient at preventing) the transfer of heat. In another embodiment, the outsole for a shoe such as an athletic shoe or cleat includes a base layer of channeled solid material with low thermal conductivity, preferably silicon, cork, or polystyrene, below a layer of heat resistant felt preferably made of oxidized polyacrylonitrile fibers. This assembly is encased within a solid plastic mold that extends up to the base of the upper of the shoe or cleat and allows for little or no pressure to be put on the assembly itself. The studs for the cleats are preferably molded out of the plastic encasing itself.