6 oz., 100% USA cotton; Sport Grey is 90/10 cotton/poly; Safety (Green & Orange) are 50/50; Made with sustainably and fairly grown USA cotton; Taped shoulder-to-shoulder; Double-needle stitching throughout; Five-point left-chest pocket; Ribbed cuffs; 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