Prepare for Impact.The Baffin Men's Impact Snow Boot gives you hefty weather protection for the most extreme winter weather. When you have to be out in deep snow and frigid temps, the Impact keeps your foot cush and cozy. Shock-absorbing GelFlex midsoles stay flexible in extreme cold, and the aggressive Polar Rubber outsole easily deals with deep snow and icy terrain. The eight-layer Thermatuf II inner bootie retains heat, and a double-layer metallic membrane reflects heat back to your foot. Open-cell foam and hollow fiber insulation provide additional warmth down to -148 degrees farenheit. The double buckle closure provides a precise fit, and the drawstring top seals out blowing snow and cold air.