4.5 oz., pre-shrunk 100% ringspun cotton, 30 singles; Ash/Marbled: 99% ringspun cotton, 1% polyester; Lt Steel/Pepper Htr: 90% ringspun cotton, 10% polyester; Heathers: 60% ringspun cotton, 40% polyester; Made with sustainably sourced USA grown cotton; Modern fit; Set-in narrowed rib collar; Self-fabric neck tape for comfort; Double-needle hem and sleeves; Tear-away label; Clean Canvas Technology for superior printability; "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