Product Details Sole Material Polyurethane, Rubber Outer Material Polyurethane (PU) Closure Type Lace-Up About this Item Liquid-resistant leather upper is tough and durable; chemical-resistant boots feature an outsole that inhibits abrasions and is resistant to mineral oils, acids, alkalis, animal fats and oils Lightweight, shock-absorbing low-density PU midsole makes these comfortable work boots suitable for long wear on the job Heat-resistant boots: electrical hazard rated outsole is also rated up to 266 °F (130 °C) for use in many high-temperature work environments Composite toe protects against impacts from above; meets ASTM F2413-11 M I/75 C/75 EH Recommended use: construction, mining, oil and gas, manufacturing, general purpose