Carhartt’s flame-resistant traditional twill coverall is available in four industry-approved colors: gray, khaki, dark navy and royal. Made of 7-ounce FR twill, a blend of 88% cotton and 12% nylon, it features two chest pockets with flaps, two pass-through pockets, left-leg utility band, spread collar, multiple tool and utility pockets, pleated elbows, a bi-wing back for comfort, and a brass front zipper with Nomex FR zipper tape and inside and outside flaps. Leg openings fit over boots.