Skiing is one winter's most fun activities, but even in cold weather, skiers typically sweat a lot. Ski boots & socks have long been known for becoming wet, cold and uncomfortable which can ruin the fun and bring about real problems. Wet socks are a skier's worst enemy, especially in cold or freezing temperatures. Wet socks pull heat away from the skin 23 times faster than dry socks; this can reduce skin temperature so rapidly that wet feet become painfully cold and are much more susceptible to frostbite and chafing. Staying dry is critical for remaining warm, comfortable and safe in cold weather. Drymax material.