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.

A knitted component may include a boundary, a first course extending from the boundary, and a second course extending from the boundary. The first course and the second course may be interlooped at a first location, the first location being adjacent to the boundary. A contour section may be located between the first course and the second course at a second location, and the second location may be spaced from the boundary such that the boundary is curved in a concave manner at the first location.

A knitted component may include a boundary, a first course extending from the boundary, and a second course extending from the boundary. The first course and the second course may be interlooped at a first location, the first location being adjacent to the boundary. A contour section may be located between the first course and the second course at a second location, and the second location may be spaced from the boundary such that the boundary is curved in a concave manner at the first location.

A sole structure for an article of footwear includes a chamber having a first barrier element, a second barrier element, and a tensile member. The tensile member is disposed within an interior void defined by the first barrier element and the second barrier element. The sole structure further includes a phase change material disposed within the interior void and operable between a first state in a first temperature range and a second state in a second temperature range. The first temperature range is from 30° C. to 35° C. and the second temperature range is from 35° C. to 42° C. The sole structure further includes an insulating member disposed between the chamber and a ground contacting surface.

A sole structure for an article of footwear includes a chamber having a first barrier element, a second barrier element, and a tensile member. The tensile member is disposed within an interior void defined by the first barrier element and the second barrier element. The sole structure further includes a phase change material disposed within the interior void and operable between a first state in a first temperature range and a second state in a second temperature range. The first temperature range is from 30° C. to 35° C. and the second temperature range is from 35° C. to 42° C. The sole structure further includes an insulating member disposed between the chamber and a ground contacting surface.

A boot that includes a rubber sole, and an upper portion attached to the rubber sole. The upper portion is made from rubber. The rubber sole includes a layer of aerogel material for an interior section of the boot. The layer of aerogel material covers the interior portion of the rubber sole along with a front part of the boot such that the layer of aerogel material contacts a sole of a foot of a wearer while also surrounding the toes of the wearer. In certain embodiments, the layer of aerogel material has a thickness ranging from 0.1 millimeters to 20 millimeters.

A footwear item that includes a rubber sole, and an upper portion attached to the rubber sole. The upper portion is made from rubber. The rubber sole includes a layer of aerogel thermal retention material for an interior section of the footwear item. The layer of aerogel thermal retention material covers the interior portion of the rubber sole along with a front part of the footwear item such that the layer of aerogel thermal retention material contacts a sole of a foot of a wearer while also surrounding the toes of the wearer. In certain embodiments, the layer of aerogel thermal retention material has a thickness ranging from 0.1 millimeters to 20 millimeters.

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.

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.

A flexible cellular material is thermoregulated by compressing and expanding gas trapped in its cells A flexible elastomer material of a device that provide thermoregulation includes two layers of different shore hardness and conductivity and is has gas-filled cells. Each cell has a zone to store the gas when compressing the material in the layer C with higher hardness and thermal conductivity and another zone to expand the gas when decompressing the material in the layer D with lower hardness and thermal conductivity. The flexible material can be used as a sole in shoes to maintain a cool temperature. With each step, the cell zones located in the layer C act as adiabatic chambers whose gasses heat with compression. When the foot leaves the ground the zones of cells located in the layer D then act as a reactor nozzle that will expand the air and therefore cool it.