Unisex - Wintersports - Over The Calf - Socks Designed for skiing and winter sports in Switzerland, the X‑SOCKS® SKI LT 4.0 socks combine the Air‑Conditioning Channel® 4.0 for intensive foot ventilation, the Lambertz‑Nicholson Achilles Tendon Protector 4.0 for targeted cushioning, and the Suppronation® bandage to stabilise your foot and reduce overpronation or supination. These premium socks keep feet dry, comfortable and ankles stable on demanding slopes.