Made of flame-resistant, 12.5 oz., 100% cotton denim with soft, pre-washed comfort and look. Features 1-piece waistband with concealed button closure, (2) front, deep scoop pockets, (2) oversized, reinforced hip pockets and (1) rule pocket on right leg with wraparound cell phone pocket. Designed with hammer loop on left leg and utility loop on back under waistband. Machine washable. Size 37U is a 37" inseam, not hemmed. Arc rating: 18 cal/cm², CAT 2.