6 oz./yd (US) 10.1 oz./L yd (CA), 100% cotton, 18 singles. Ash Grey - 99/1 cotton/polyester. Dark Heather & Safety colors - 50/50 cotton/polyester. Sport Grey - 90/10 cotton/polyester. Safety Green - Compliant with ANSI / ISEA 107. Heavyweight fabric. Classic fit. Non-topstitched, classic width, rib collar. Double-needle bottom hem. Taped neck and shoulders. Rib cuffs. Tear away label.