6 oz./yd², 100% cotton, 18 singles; Charcoal Heather and Safety Green are 50% cotton, 50% polyester; Ash is 99% cotton, 1% polyester; Athletic Heather is 90% cotton, 10% polyester; Set-in rib collar with shoulder-to shoulder taping; Rib sleeve cuffs; Double-needle bottom hem; Preshrunk to minimize shrinkage; Tear away label;