6 oz.(US) 10 oz.(CA), 100% preshrunk cotton,Ash: 99/1�cotton/polyester,Athletic Heather: 90/10�cotton/polyester,Charcoal Heather & Safety Green: 50/50�cotton/polyester,Set-in rib collar with shoulder-to shoulder taping,Rib sleeve cuffs,Double-needle bottom hem,Tearaway label