4.3 oz./yd², 100% combed ringspun cotton, 30 singles; Athletic Heather is 90% cotton, 10% polyester; Side seamed for tapered, stylish fit; Fashionable set-in rib collar with shoulder-to-shoulder taping; Double-needle sleeve and bottom hem; Preshrunk to minimize shrinkage; NAFTA and CPSIA compliant; Tear away label;