1) Bamboo/Combed cotton blended yarn 2)Siro and Ring spun ... 3) ratio:30/70,20/80,50/50 ,etc 4)21s,32s,40s,etc Bamboo yarn ... Feature:1.main Function : (1) releasing negative ions ; (2) adsorption and ... infrared; (4) moisture absorption.permeability, quick-drying. 2.Usage: Underdress,T-shirt,shirt,sock,towel,bedding, ... ,white, 32s/1 Bamboo Cotton yarn