Berne Heartland Insulated Washed Duck Bib Overalls - BlackShell: 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,