4.5 oz., 100% preshrunk ringspun cotton; 30 singles; Graphite Heather, Safety Green are 50% cotton, 50% polyester; ; Heather Irish Green, Heather Royal are 35% cotton, 65% polyester; ; Sport Grey is 90% cotton, 10% polyester; High-stitch density for smoother printing surface; Seamless double needle ; Taped neck and shoulders; Tear away label; Double-needle sleeve and bottom hems; Quarter-turned to eliminate center crease ; 3/4" collar; CPSIA Tracking Label Compliant; 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