4.5 oz./yd² (US), 7.5 oz./L yd (CA), 100% combed ring-spun cotton; Ash is 99/1 combed ring-spun cotton/polyester; Heather is 90/10 combed ring-spun cotton/polyester; Black Leopard, Granite Heather, Storm Camo & All Vintage colors are 60/40 combed ring-spun cotton/polyester; White is sewn with 100% cotton thread; Topstitched ribbed collar; Shoulder-to-shoulder self-fabric back neck tape; Double-needle sleeves and bottom hem; CPSIA compliant tracking label on side seam; EasyTear™ label; This product meets the following Sustainable Style subcategory:Socially Conscious Manufacturing: This product was made in a facility that is WRAP certified