4.5 oz., preshrunk 100% combed ringspun cotton; 30 singles; Heather Grey: 90% cotton, 10% polyester; Heather colors and Neon colors: 65% polyester, 35% cotton; Graphite Heather: 50% cotton, 50% polyester; Seamed collar; Shoulder-to shoulder tape; Tubular construction transitioning to Side Seamed- mixed inventory may occur; Double-needle sleeve and bottom hem; Oeko-Tex� Standard 100 Certified; Tear away label; Anvil Black label tranistioning to Gildan Black label in 2022; Inventory may be mixed; 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