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 Gildan\’s manufacturing process utilizes 45% renewable energy Gildans Community Investment Program supports education, the environment, humanitarian aid and active living in the communities we do business in