You don't have to be working on the railroad to appreciate the flex and durability of these women's bibs. They're made with stretch canvas, so you can swing a hammer or lug backyard brush without a problem. The overalls have a rugged double-front design featuring plenty of pockets. Compatible with the Carhartt Knee Pad. 10-ounce, 100% cotton twill. Adjustable suspenders for a personalized fit. Bib pocket with zip closure. Double-layer knees with openings for adding knee pads and cleaning out debris. Two large lower-front pockets.