4.3 oz.(US) 7.15 oz.(CA),100% preshrunk combed ringspun cotton,Athletic Heather: 90/10 cotton/polyester,Charcoal Heather & Graphite Heather: 50/50 cotton/polyester,Fashionable mitered-V rib collar with shoulder-to-shoulder taping,Double-needle sleeve and bottom hem,Tearaway label