99% Cotton, 1% Carbon Fibre. Design: Reflective, Tape. 350gsm. Fabric Technology: Bizflame Plus, Durable, Flame Resistant, Protection Against Contact Heat, Protection Against Convective Heat, Protection Against Radiant Heat, Welding Protection. Pockets: 2 Front Pockets, Patch, Ruler Pocket, 1 Chest Pocket, 1 Back Pocket, Flap Closure, Stud Fastening, Knee Pad Pockets. Brass Zip, Double Stitched, Elasticated, Protection Against Molten Metal Splash, Sew-On, Shoulder Straps, Triple Stitched Seam, Wash Tape. Conforms to Safety Standard: ASTM F1959/F1959M-12 ATPV 13.6 CAL/CM2 (HAF=82%), CE Certified, CE-CAT III, Class 2, EN 1149-5, EN ISO 11611 Class 2 A1+A2, EN ISO 11612 A1+A2, B1, C1, E2, F1, IEC 61482-2 IEC 61482-1-1 Elim 8.6 CAL/CM², IEC 61482-2 IEC 61482-1-2 APC 1, UKCA. Hem: Touch Fastening. Sun Rating: UPF 40+. Ref: UTPW856