Carhartt's flame-resistant clothing meets ASTM F1506, NFPA-70E, and OSHA 29 CFR 1910.269 standards. This 13-ounce jacket is made of INDURA® Ultra Soft® duck, which is a blend of 88% cotton and 12% high-tenacity nylon. The lining is a 10-ounce Moda-Quilt®, a flame-retardant Modacrylic batting quilted to INDURA® Ultra Soft® twill face cloth. There are two inside patch pockets with FR hook-and-loop closure, Nomex® rib-knit cuffs and waistband, a brass front zipper with Nomex® zipper tape (with inside and outside protective flap and hidden snap closure for electric arc protection). The attached three-piece hood is quilt-lined and has a Nomex® draw cord for adjustment. HRC 4 and ATPV 50.4.