Built for your job, Knapp boots are trusted by people who work for a living. They are durable and comfortable, and come at a great price. These 6'' Steel Toe Work Boots feature: a tumbled full grain leather upper, a moisture wicking nylon mesh lining and a removable EVA cushion insert with sponge rubber heel wedge. Meeting ASTM F2413 standards, they also feature an oil, slip and chemical resistant solid rubber bottom, an electrical hazard protection and a Goodyear Welt construction. Material: Leather, Rubber.