- 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 Responsible Supplier: this product was made in a facility that is Bluesign certified.