4.5 oz. fabric made with Dupont Nomex IIIA brand fiber is a protective aramid fiber which is permanently flame resistant with excellent chemical resistance
Thread and Zipper made of Nomex IIIA brand fiber
Non-sparking covered snaps
One-piece action back with elastic waistband
Pockets: 2 chest, 1 tool pocket, 2 back, 2 hip, 2 front pass throughs with snaps