104674 Carhartt Men's Storm Defender Loose Fit Heavyweight Bib Overall These men's bib overalls are built for hard work in hard rain. Rated 10k/10k, they're made of durable heavyweight nylon that's waterproof, breathable, and wind-resistant. Double-layer knees accommodate knee pads, while an adjustable waist and suspenders let you find just the right fit. The generous cut is the roomiest Carhartt offers.