100% preshrunk cotton. double-needle stitching throughout. taped shoulder-to-shoulder. ribbed cuffs. " collar. Ash Grey is 99/1. Sport Grey is 90/1. Dark Heather Safety Green and Safety Orange are 50% cotton 50% polyester. Soft premium cotton for added comfort Double needle stitching in bottom hem for extra durability Classic cut for roomier fit Seamless double needle collar to lay flat on your neck