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 cottonTaped shoulder-to-shoulder Double-needle stitching throughout Five-point left-chest pocket Ribbed cuffs 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