Lining: Heavyweight sherpa; Shell: 12 oz., 100% cotton sanded duck; Sherpa-lined front pockets, zip-through collar and extended back trap the heat; Brass front zipper, triple-needle stitched main seams and reinforced bartacks at all stress points hold up to tough tasks; Three inside chest pockets -- right with zipper closure -- zippered left chest pocket and two front pockets safely store essentials