Made of 14.5 oz., of 100% cotton FR denim material. Room2move™ fit features improved fit in the seat, thigh, knees and bottom leg openings as well as action gusset for ease of movement. Safety orange outside ID for high visibility. Offers Nomex® triple-needle stitching, extra-deep 13" FR-treated front pockets, reinforced back pockets, right side hammer loop and tool pocket detail. CAT2. Meets ASTM 1506, NFPA-70E, OSHA Final Rule 1910.269 and NFPA 2112 certified.