60% Modacrylic, 40% Cotton. Fabric: Interlocking, Knitted, Modaflame. Design: Reflective, Tape. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Fabric Technology: Flame Resistant, Lightweight, Protection Against Convective Heat, Protection Against Radiant Heat. High-Vis, Insulated, Sew-On. 280gsm. Conforms to Safety Standard: ASTM F1959/F1959M-12 ATPV 9 CAL/CM2 (HAF 80.8%), CE Certified, CE-CAT III, EN 1149-5, EN ISO 11611 Class 1 A1, EN ISO 11612 A1+A2, B1, C1, EN ISO 20471 Class 3, IEC 61482-2 IEC 61482-1-1 Elim 8.2 CAL/CM², IEC 61482-2 IEC 61482-1-2 APC 1, UKCA. Sun Rating: UPF 40+. Ref: UTPW1423