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 sherpa-lined pockets safely store essentials Heavy-duty 10 oz. cotton duck Body: Heavyweight sherpa lined Sherpa lined front pockets Zip-through collar Extended back Three inside chest pockets Chest pocket