99% Cotton, 1% Carbon Fibre. Fabric: Twill. Design: Plain. 210gsm. Fabric Technology: Bizflame Plus, Flame Resistant, Lightweight, Protection Against Contact Heat, Protection Against Convective Heat, Protection Against Radiant Heat. Pockets: Ruler Pocket, Back, Sleeve, Knee Pad Pockets, Side Entry. Action Back, Brass Zip, Radio Loop, Sew-On, Wash Tape. Conforms to Safety Standard: ASTM F1959/F1959M-12 ATPV = 9.1cal/cm², CE Certified, CE-CAT III, EN 1149-5, EN ISO 11611 Class 1 A1+A2, EN ISO 11612 A1+A2, B1, C1, E2, F1, UKCA. Cuff: Hook And Loop Strap. Fastening: Two Way Zip. Sun Rating: UPF 40+. Portwest Unisex Adult Flame Resistant Anti-Static Overalls