12-ounce, 100% cotton sandstone duck. Nylon lining quilted to midweight polyester insulation. Adjustable front-elastic suspenders. Multi-compartment bib pocket. Zipper fly. Two large lower-front pockets. Left-leg hammer loop. Double kneeswith cleanout bottoms that accommodate knee pads. Ankle-to-knee leg zippers with storm flaps. Two reinforced back pockets. Triple-stitched main seams. Metal rivets at vital stress points.