Carhartt's flame-resistant clothing meets ASTM F1506, NFPA-70E, and OSHA 29 CFR 1910.269 standards. This 13-ounce coat is made of INDURA® Ultra Soft® duck, a flame-resistant fabric of 88% cotton and 12% high-tenacity nylon. The lining is a 10-ounce Moda-Quilt®. There are two inside patch pockets with FR hook-and-loop closure, a two-way brass front zipper with inside and outside protective flap and hidden snap closure, a Nomex® inside waist draw cord for adjustment, an INDURA® corduroy collar with snaps for an optional FR hood, and Nomex® rib-knit storm cuffs to seal out cold air. HRC 4 and ATPV 50.4.