13-ounce 100% cotton, FR duck. 6-ounce, twill-face cloth lining. Two inside patch pockets with FR hook-and-loop closures. Nomex rib-knit cuffs and waistband. Brass front zipper with Nomex zipper tape features inside and outside protective flaps plus hook-and-loop closure for electric-arc protection. Under-collar snaps for optional FR hood. Back length: Large Regular: 29 inches; Large Tall: 31 inches. Carhartt FR label sewn on front pocket, HRC 2 label sewn on zipper flap. NFPA 70E compliant. Flame-resistant fabric by Mount Vernon Mills. VPN: FRJ198.