Carhartt FRX010 Flame Resistant Unlined Twill Coverall. 7 ounce FR twill: a blend of 88% cotton and 12% high tenacity nylon. Two chest pockets with flaps. Two pass through pockets. Left leg utility band. Multiple tool and utility pockets. Spread collar. Two way brass front zipper with Nomex FR zipper tape and inside and outside protective flaps. Split back construction. Pleated bi-swing back. Pleated elbows. Triple needle stitching. Leg opening fits over boots for easy on and off. Carhartt FR label sewn on back and front pockets, HRC label sewn on left chest pocket. NFPA 70E and NFPA 2112 compliant. Flame resistant fabric by Mount Vernon Mills. HRC 2 ATPV(CAL/CM2) 8.6