¥1111 → 970 Warm, brushed fleece. Can be worn as innerwear for sportswear during the cold season. The following is quoted from the website: ● HEAT-X: Heat-generating material. "HEAT-X" is a moisture-absorbing, heat-generating material that absorbs moisture released from the body and generates heat. It suppresses humidity inside the clothing and keeps you dry and comfortable. Special fibers retain the warm air generated by the heat, providing insulation. There are no noticeable stains, but please refrain from purchasing if you are sensitive to used items.