12 oz., firm-hand, 100% ring-spun cotton duck. 100% nylon lining quilted to midweight polyester insulation. Fully insulated bib adds upper-body warmth. 2 chest pockets with zipper closures. Full-length front zipper with storm flap & snap closure. 2 large lower-front pockets. Right & left-leg hammer loops & ruler pockets. Double knees with cleanout bottoms that accommodate knee pads. Ankle-to-waist leg zippers with storm flaps & snap closures. Triple-stitched main seams. 2 reinforced back pockets