Our flame-resistant twill coverall is un-lined for use in moderate climates. Made of 7-ounce FR twill, a blend of 88% cotton and 12 % high tenacity nylon, it features two chest pockets with flaps, two pass-through pockets, left-leg utility band and multiple tool and utility pockets. It also has a spread collar, two-way brass front zipper with Nomex® FR zipper tape and protective flaps, pleated elbows and a bi-swing back for easy of movement and leg openings that fit over work boots. Seams are triple-stitched for durability.