The winter can be unpredictable, but your footwear shouldn’t be. That is why we’ve developed the Arctic Ice AG. These winter sport boots step up the warmth factor with 8mm neoprene inner boot layered with soft fleece lining for ultimate warmth in extreme conditions as low as minus 50 degrees. The stretch-fit top-line binding keeps the boots snug to your legs to keep cold air out and warm air in. The outsole features Vibram Arctic Grip™, the new ground-breaking sole technology specifically engineered to perform on wet ice. As the temperature drops to near freezing, the thermochromatic lug on each sole turns white to blue, to alert you that the temperature is low enough for ice formation. Vibram Arctic Grip™ is the most advanced cold weather gripping system Vibram® has ever created; now you can tread on the iciest of surfaces with confidence.