100% cotton; Silver Gray is 99% cotton, 1% polyester; Oxford Gray is 90% cotton, 10% polyester; 1" bound ribbed crewneck; Deep armholes; Double-needle sleeves and bottom hem; "C" logo on left sleeve; “A” list status from CDP (Carbon Disclosure Project); Energy Star Partner of the Year (12 consecutive years); Every piece of Champion apparel purchased from our company qualifies for Hanes4Education