Uses moisture-absorbing and heat-generating material: This material absorbs moisture and generates heat, absorbing moisture released from the body's surface and generating heat to keep you warm! Uses black yarn-dyed polyurethane: By using material dyed black to the core, even when stretched during wear, it achieves a beautiful, non-glossy transparency! [Product Features] ・Uses black yarn-dyed polyurethane ・Three-dimensional design for the panty section ・Soft waist that leaves less elastic marks ・Pilling resistant ・Antibacterial and deodorizing treatment ・Suitable for indoor drying ・Anti-static treatment ・Camellia oil blended for softness ・Deodorant treatment ・Seamless toe