STYLE 5157 Specifically designed for the North American climate the Ice Bear was the first boot to marry PU boot technology and warmth to a rubber outsole. The Ice Bear is wider fitting through calf and foot and comfort-rated to -50° Celsius. These boots offer a rugged design for workers on oil rigs and at petroleum refineries and is made with a thermal PU compound to resist cracking at extreme temperatures. Inside you'll find a comfort footbed and Gelflex midsole providing comfortable cushioning and support throughout the day. Light weight abrasion resistant Polyurethane (PU) molded 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 GreenTriangle/ ASTM / CE approved ESR / EH rated CSA/ASTM/CE approved ESR/EH rated Lightweight abrasion resistant Polyurethane (PU) molded boot Thermal PU compound is cold crack resistant Wide fit through the calf and foot Polar Rubber® outsole for maximized grip and longevity of boot at cold temperatures Oil and acid resistant rubber outsole provides superior traction at extremely cold temperatures Multi-directional lug tread outsole design provides added traction on packed snow and icy conditions GelFlex anti-fatigue midsole for shock absorption and rebounding Metal Free Safety Toe and Plate