Carhartt R03 Duck Bib Overall with Carhartt's Arctic Quilted Lining. 12 ounce, firm hand 100% ring spun cotton duck. Zipper fly. 100% nylon quilted to Carhartt's Arctic weight polyester lining. Multiple tool and utility pockets. Hammer loop. Ankle to knee leg zippers with protective wind flaps. Carhartt's famous triple stitched main seams. Metal rivets at vital stress points. Double knees with cleanout bottoms that can accommodate knee pads.