4.5 oz. 100% preshrunk ringspun cotton jersey; Sport Grey and Antique colors: 90% cotton 10% polyester; Graphite Heather: 50% cotton 50% polyester; All other Heather colors: 65% polyester 35% cotton; Seamless double-needle 3/4 collar; Taped neck and shoulders; Rolled forward shoulder; Double-needle sleeve and bottom hem; Tubular fit for minimal torque; Grey pearlized tear away label transitioning to Black tear away label; Gildan s manufacturing process utilizes 45% renewable energy; Gildan’s Community Investment Program supports education the environment humanitarian aid and active living in the communities we do business in;