ADVANCED FABRICS Main Body Fabric: 72% Nylon, 28% Polyester | 2.5 oz/sq. yd; 84 GSM Knit Fabric (panels on front of sleeve and back): 85% Polyester, 15% Cotton | 4.7 oz/sq. yd; 160 GSM Mesh Fabric (panels on side body): 85% Polyester, 15% Cotton | 4.1 oz/sq. yd; 140 GSM UPF 30 Quick dry, moisture-wicking Imported