5.3 oz./yd² (US) 8.8 oz./L yd (CA), 100% cotton, 20 singles Blackberry, Dark Heather, Graphite Heather, Heather Colors, Lilac, Midnight, Neon Colors, Safety Colors, Sunset, & Tweed are 50/50 cotton/polyester Antique colors & Sport Grey are 90/10 cotton/polyester Ash Grey is 99/1 cotton/polyester Safety Green is compliant with ANSI / ISEA 107 high-visibility standards Innovation you can feel. Made with 100% U.S. cotton and the latest breakthrough in soft cotton technology, the Gildan® Heavy Cotton family has been remastered for improved printability, quality and comfort you can see and feel. Classic fit Rib collar Taped neck and shoulders for comfort and durability Tear away label Proud member of the U.S. Cotton Trust Protocol Made with OEKO-TEX certified low-impact dyes