Specifically designed for the North American climate Lightweight abrasion-resistant Polyurethane (PU) moulded boot Wide fit through the calf and foot Thermal PU compound is cold crack resistant to -50°C/-58°F GelFlex PU midsole provides comfort and reduces fatigue Oil- and acid-resistant rubber outsole provides superior traction at extreme cold temperatures Lug outsole design provides added traction on packed snow and icy conditions Metal-free safety toe and plate Comfort-crafted insole CSA / ASTM / CE approved ESR / EH rated