6-inch boot height. CSA Grade 1 protective toe cap. Metal free underfoot puncture protection. Weatherproof leather is an industry-leading 2.5 mm thick, yet "breathes" for absolute comfort. Dual-density polyurethane midsole and thermo-polyurethane (TPU) outsole: flexible, lightweight and durable. XRD® removable comfort classic footbed for all-day comfort and support. Injection molded soles -- no adhesives to come unglued, no stitching to rot. Heat, slip, oil, acid and electric shock-resistant sole. Heat-formed heel for a snug fit. Unisex sizing.