... long johns 50% bamboo charcoal fiber 30%acrylic 20%holllow thermal, soft,antibacterial, quick dry,odor free Thermal underwear: made of bamboo ... , but also antibacterialThermal underwearAs we used to know, bamboo charcoal has a good function of antibacterial and eliminates ... odor. Actually, beside it, bamboo charcoal also has far infrared function. With far infrared ...