4.5 oz. 100% ring spun cotton, 30 singles, Perfect-T cotton jersey; Ash: 99% Cotton, 1% Polyester; Light Steel: 90% Cotton, 10% Polyester; Fully pre-treated on the entire jersey surface of the garment;Set-in, ribbed neckband; Shoulder-to-shoulder tape; Unisex classic fit; Preshrunk for a great fit wash after wash; “A” List Status from CDP (Carbon Disclosure Project) ; Energy Star Partner of The Year (12 Consecutive Years); Every piece of Hanes Apparel purchased qualifies for Hanes4Education;