Heather colors & Safety colors: 50/50 cotton/polyester. 6 oz./yd² (US) 10 oz./L yd (CA), 100% cotton, 18 singles. Increased body and sleeve lengths to accommodate shrinkage. Classic fit. Tear away label. Ash Grey: 99/1 cotton/polyester. No optical brighteners - allows for more consistent dye adherence. Double-needle sleeve and bottom hems. PFD White: 100% cotton with cotton thread. Non-topstitched, classic width, rib collar. Heavyweight fabric. Taped neck and shoulders. Safety Green: Compliant with ANSI / ISEA 107. Antique colors & Sport Grey: 90/10 cotton/polyester.