4 oz., 100% polyester interlock jersey; 50+ UPF rating for excellent UV protection; Moisture wicking; Perfect for print or sublimation; Narrow ribbed collar; Double-needle stitching throughout; 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