6 oz./yd (US) 10 oz./L yd (CA), 52/48 cotton/polyester knit, 20 singles Sport Grey is 90/10 cotton/polyester Graphite Heather is 62/38 cotton/polyester The Dry Blend collection's ring-spun cotton/poly blend is a moisture-wicking fabric that delivers comfort and coolness. Classic fit Contoured welt collar and cuffs Clean finished placket with dyed-to-match buttons Tear away label Responsible Supplier:  this product was made in a facility that is OEKO-TEX and FLA certified. Responsible Materials:  contains US grown BCI cotton 8800