4 oz., 30 singles; 60% combed & ring spun cotton, 40% polyester; Heather Grey is 60% cotton, 40% polyester; All polyester used in our manufacturing is now 100% recycled; Bound self-neckband; Double-needle stitching detail; Tear-away label; Classic fit; "A-" list status from CDP (Carbon Disclosure Project); Energy Star Partner of the Year (14 consecutive years); Every piece of Alternative apparel purchased from our company qualifies for Hanes4Education