12-ounce, firm-hand, 100% ring-spun cotton duck. Adjustable front-elastic suspenders. Bib pocket with zipper closure. Zipper fly. Two large lower-front pockets. Left-leg hammer loop and ruler pocket. Long-wearing, chap-style double front construction with cleanout bottoms that can accommodate knee pads. Ankle-to-thigh leg zippers. Two reinforced back pockets. Triple-stitched main seams. Metal rivets at vital stress points.