... /1,Ne40/2Composition::100%bamboo charcoal fiber,or bamboo charcoal / cotton 20%/80%,50%/50%,40%/60%Bamboo charcoal yarns with innumerable holes structure ... of our products is Warming. According to test result, with 500W halogen light shone on the bamboo charcoal yarn ... natural no irradiation, the best choice of warm textiles.Bamboo charcoal fiber yarns are widely used in mattresses, pillows, mattress ...