5.5 oz./yd² (US), 9.2 oz./L yd (CA), 100% cotton jersey Heather is 90/10 cotton/polyester White is sewn with 100% cotton thread Ribbed collar and cuffs Shoulder-to-shoulder self-fabric back neck tape Double-needle sleeves and bottom hem CPSIA compliant tracking label on side seam EasyTear™ label Responsible Supplier: this product was made in a facility that is OEKO-TEX certified.