6 oz., 100% USA cotton; Ash Grey is 99% cotton, 1% poly; Sport Grey is 90% cotton, 10% poly; Safety Green & Safety Orange are 50% cotton, 50% polyester;; Made with sustainably and fairly grown USA cotton; Double-needle stitching throughout; Taped shoulder-to-shoulder; Five-point left-chest pocket; 7/8" collar; 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