Features Shell: 12 oz. 100% cotton sanded duck Lining: Heavyweight insulation quilted to 100% polyester taffeta Insulated high back and outside storm flap for added warmth Triple-needle stitched main seams, reinforced knees and heavy-duty nylon leg hem stand up to the toughest jobs Two inside chest pockets, two chest pockets with pencil slot and hidden zipper pocket, two deep front pockets, side utility pockets, hammer loop and two reinforced back pockets, left with brass zipper for maximum storage Four-needle stitched waistband with elastic inserts, adjustable elasticized bib straps and leg snaps allow for custom fit Brass two-way front zipper, heavy-duty brass leg zipper with snap closure at hand opening and brass rivets at front stress points provide lasting functionality.