5.3 oz./yd² (US) 8.8 oz./L yd (CA), 100% preshrunk cotton; Sport Grey: 90/10 cotton/polyester; Classic fit; 3/4" double-needle topstitched collar; Taped neck and shoulders; Rib cuffs; Double-needle bottom hem; Side seams; Grey pearlized tear away label; CPSIA Tracking Label Compliant