Our flame-resistant duck vest is quilt-lined for cooler days. Made of 13-ounce, 100% cotton flame-resistant duck with a 10.5-ounce, flame-resistant quilt lining, it has an inside patch pocket with a hook-and-loop closure, kidney flap and a Nomex® rib-knit collar. It also features a brass front zipper with Nomex® zipper tape and inside/outside protective flaps with a hidden snap closure for electric arc protection.