Comfortable & Breathable Polyurethane Cushion insole with shock-absorbing cushion. Supports lower back and legs. Offering dependable comfort during long workdays. Lightweight & Durable: Rubber outsole resists oil and chemical erosion and gives superior traction and support when working on hard and rocky surfaces Goodyear Welt: Industrial Work Boot Construction Prevents Sole Separation with Resoleable option. Steel Shank for stability Traction: The tread pattern on this wedge sole work boot allows you to walk freely without worrying about tripping over a rivet, a great quality for framers, roofers, carpenters, and iron workers Insulated: Mesh lining offers insulation to keep your feet warm during the cold work days and wicks moisture and sweat during hot workdays