4.5 oz., 30 singles; Solid: 30% Ring Spun Cotton, 60% Recycled Polyester, 10% Rayon, 30 Singles; Light Steel: 90% Cotton, 10% Polyester, 20 Singles; All cotton content is 100% U.S. Grown; Safety Green is ANSI/ISEA 107-2020 certified as background material for high visibility safety apparel; 50-20 UPF rating, good protection; X-Temp adaptive finish and fresh IQ advanced odor protection technology; Shoulder-to-shoulder neck taping; Oversized pencil stitch pocket; Extra length in body and sleeves for coverage; Reinforced armhole stitching for durability; Lay-flat collar for shape retention and durability; 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