4.5 oz., pre-shrunk 100% ringspun cotton, 30 singles; Ash is 99/1; Light Steel is 90/10; Made with sustainably sourced USA grown cotton; Modern fit; Set-in narrowed rib collar; Self-fabric neck tape for comfort; Double-needle cuffs, leeves and bottom hem; Clean Canvas Technology for superior printability; Tear-away label; "A-" list status from CDP (Carbon Disclosure Project); Energy Star Partner of the Year (14 consecutive years); Every piece of Hanes apparel purchased from our company qualifies for Hanes4Education