Patent ID: 11019878

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., 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, silicon, cork, or polystyrene, below a layer of heat resistant felt.