LAPCO FR's flame-resistant denim bib overalls are great for all-season wear. Made of 13oz., 100% FR cotton denim, they sport a high, "diamond" back with adjustable elastic suspenders for fit and ease of movement, double-stitched seams for durability and multiple utility pockets. Double needle stitching on side seam and inseam, for extra durability. Shoulder straps feature heavy-duty elastic for comfort. Knees are reinforced for durability. Reinforced patch pockets on front bib, front slash pockets, back patch and utility pockets, to keep your items secure. Sewn with Nomex thread.