Built for serious skiers who demand durability and comfort on the mountain. These Darn Tough over-the-calf socks feature a lightweight construction that keeps your feet warm without bulk, so your ski boots fit perfectly. The Cold Smoke colorway blends seamlessly with winter gear while the reinforced heel and toe withstand season after season of use. Merino wool blend regulates temperature and resists odor, keeping your feet dry and fresh all day. Backed by Darn Tough's unconditional lifetime guarantee—if they wear out, they're replaced free. The ideal choice for backcountry adventures and resort runs alike.