5.3 oz., 65% polyester, 35% cotton blend; Light Steel: 90/10 poly/cotton blend; Safety Green is ANSI/ISEA certified for high visibility safety apparel; 50 UPF protection; X-Temp adaptive finish and fresh IQ advanced ordor proctection technology; Made with sustainably sourced USA grown cotton; 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 durabil