4.2 oz./yd2 (US), 7 oz./L yd (CA), 100% airlume combed and ringspun cotton, 32 singles. Athletic Heather is 90/10 airlume combed and ringspun cotton/polyester . Dark Grey Heather is 52/48 airlume combed and ringspun cotton/polyester. Triblends are 3.8 oz., 50/25/25 polyester/ airlume combed and ringspun cotton/rayon, 40 singles. Retail fit . Unisex sizing. Ribbed cuffs. Side seams. Tear away label.