Extreme cold and prolonged exposure are a recipe for frostbite and unfortunately, snug ski boots in close proximity to the snow make your feet prime targets. Thankfully you can improve your skiing performance, combat cold feet, and log more turns with the Therm-ic SmartPack IC 950 Boot Warmers. Simple integration and a universally applicable design makes the SmartPack IC 950 Boot Warmers a no brainer -- unless you've been enjoying frigid feet of course.