The Carhartt 101622 Flame Resistant Midweight Active Jac resists flash fire and arc flash, but never hard work. It's not just what you want, it's what you need. This 8.5-oz FR canvas: 88% cotton/12% high-tenacity nylon coat has 8.75-oz FR quilt lining with FR modacrylic batting quilted to FR twill face cloth, two lower front pockets, and two inside patch pockets with FR hook-and-loop closures. It also features Nomex(R) FR rib-knit cuffs and waistband, a brass front zipper with Nomex(R) FR tape, inside and outside protective flaps with hook-and-loop closure for electric-arc protection, an attached quilt lined hood with adjustable Nomex(R) FR draw cord, and Carhartt FR and NFPA 2112/HRC 3 labels sewn on the zipper flap. Meets the performance requirements of NFPA 70E standards and is UL(R) Classified to NFPA 2112.