CM8603 Carhartt for Kids Boys' Washed Duck Bib Overall - Sizes 4-7 Carhartt's washed bib overall takes the longest, most active days in stride. It is constructed of rugged 9 Ounce, 100% Cotton Duck and features double knees with cleanout bottoms to extend wear and accommodate knee pads. Washed high back with adjustable shoulder straps Zipper fly Triple-stitched main seams Bib pocket with snap closure Double knees with cleanout bottom Utility pockets Woven Carhartt brandmark label on bib pocket Fabric 9 Ounce, 100% Cotton Duck Product Care Wash warm, do not bleach and tumble dry medium. Remove promptly.