... friendly yarn, dty 150/288: Product Features:Firstly, The charred bamboo can radiate far infrared to activate cell, stimulate blood circulation ... is good for health. Secondly, The micro of the charred bamboo can regulate humidity effectively. The garment made with NANOTAN, ... Thirdly, After rubbing with skin or other substance, the added bamboo charcoal powder can emit healthy minus ion which is helpful ...