Get your feet warm in winter with the new KOMBI Warm It Up heated ski socks. Equipped with KOMBI’s WARM-UP system, they are powered by a USB battery that keeps you comfortable for up to 8 hours. With a length above the calf for maximum coverage, these warm socks with medium-thick cushioning also provide support to the arch and ankle, as well as reinforcement to the heel and toes. The combination of acrylic, merino and nylon fabric in these ski socks offers a perfect blend of warmth, breathability and stretch. Enjoy the season with a two-year warranty, whatever your sport of choice: alpine hiking, cross-country skiing, snowboarding and any other activity requiring constant warmth.