Carhartt’s flame-resistant duck active jacket provides a combination of durability, comfort and protection. Made of 13-ounce, flame-resistant 100% cotton duck. The jackets quilted lining also features two inside patch pockets with flame-resistant hook-and-loop closures, Nomex® rib-knit cuffs and waistband and a brass front zipper with Nomex® zipper tape and hidden snap closure for electric arc protection. NFPA 70E compliant