Material function: 1. Cooling material: It¡¦s able to reduce the temperature over regular fabrics while wearing. 2. Moisture absorption and sweat drain material: - Quick dry as well as easy cleaning. - Soft and comfortable touch. 3. Bamboo Charcoal material: A. Radiate Far Infrared Ray - The charred bamboo can radiate far infrared ray to stimulate blood circulation and keep body warm. B . Regulate Humidity -The micro holes of the charred bamboo can regulate humidity effectively. It¡¦s a functional textile. C.. Emit Anion - The added bamboo charcoal powder can emit healthy anion to make people healthy. D. .Antibacterial and Deodorizing Ability -The antibacterial material mixed in the fiber can effectively restrain the growth of bacterial to reduce the stink. 4. Nylon + Spandex.