100% Cotton. Design: Plain. 330gsm. Fabric Technology: Flame Retardant. Pockets: Hip Pocket, Flap Closure, Ruler Pocket, 2 Side Pockets, 1 Mobile Phone Pocket, Concealed, 2 Chest Pockets, Knee Pad Pockets. Radio Loop. Neckline: Hooded. Conforms to Safety Standard: ASTM F1959/F1959M-12 ATPV 11.2 CAL/CM2 (HAF = 80.4%), CE Certified, CE-CAT III, EN ISO 11611 Cl 1 A1+A2, EN ISO 11612 A1+A2, B1, C1, E2, F1, IEC 61482-2 IEC 61482-1-1 Elim 8.3 CAL/CM², UKCA. Cuff: Adjustable, Stud. Fastening: Concealed, Stud. Hood Features: Drawcord, Grown On Hood. Hem: Drawcord. Heat Resistant. Sun Rating: UPF 40+.