12-ounce, firm-hand, 100% ring-spun cotton duck. Nylon lining quilted to midweight-polyester insulation. Fully-insulated bib adds upper-body warmth. Two chest pockets with zipper closure. Full-legnth center-front zipper with storm flaps and snap closure. Two large lower-front pockets. Hammer loops and ruler pockets on the right and left legs. Double knees with cleanout openings that accommodate knee pads. Ankle-to-waist leg zippers with storm flaps and snap closures. Two reinforced back pockets. Triple-stitched main seams.