12-ounce, firm-hand, 100% ring-spun cotton duck. Nylon lining quilted to midweight-polyester insulation. Adjustable front-elastic suspenders. Multi-compartment bib pocket with zipper closure. Zipper fly. Two large lower-front pockets. Hammer loops on the left and right legs. Chap-style double front construction. Double knees with cleanout bottoms that can accommodate knee pads. Ankle-to-hip leg zippers with storm flaps and snap closures. Cordura back-leg kick panels. Two reinforced back pockets. Triple-stitched main seams. Metal rivets at vital stress points.