3.6 oz./yd² (US) 6 oz./L yd (CA), 52/48 Airlume  combed and ring-spun cotton/polyester, 40 singles Marbles are 4 oz./yd²., 91/9 polyester/ Airlume  combed and ring-spun cotton, 32 singles Neons are 3.6 oz./yd², 52/48 Airlume  combed and ring-spun cotton/polyester, 40 singles Speckleds are 4 oz./yd²., 50/25/25 polyester/ Airlume  combed and ring-spun cotton/rayon, 32 singles Acid Washes *  are 4.4 oz./yd²., 52/48  Airlume  combed and ring-spun cotton/polyester, 32 singles Slubs are 4 oz./yd²., 50/37.5/12.5 poly/ Airlume  combed and ring-spun cotton/rayon, 32 singles Mineral Wash * is 4.2 oz./yd², 100%  Airlume  combed and ring-spun cotton, 32 singles Pre-shrunk Retail fit Unisex sizing Side seams Tear away label *Due to the specialized washing process, each shirt is unique