5.2 oz., 100% cotton; Ash is 99% cotton, 1% polyester; Light Steel is 90% cotton, 10% polyester; Safety colors, Charocal Heather, Oxford Gray: 50% cotton, 50% polyester; Made with sustainably sourced USA grown cotton; Double-needle stitching throughout; Coverseamed neck with lay flat collar; Shoulder-to-shoulder tape; Tagless label transitioning to a tear-away label. INVENTORY MAY BE MIXED; “A” list status from CDP (Carbon Disclosure Project); Energy Star Partner of the Year (12 consecutive year