... No harmful to human skin.2. bamboo fiber will not get mildew, revert and tacky even in summer Cotton ... even hard to survive. So the bamboo fiber will not get mildew, revert and tacky even in summer. 3 ... no matter use bamboo fiber towel how long will not be changed, harden and stiff phenomenon, and ... big textile fiber in the list.bamboo fiber will not get mildew, revert and tacky even in summer Cotton ...