BOBR Socks- WINTER are developed for cold feet. It keeps your body temperature still even when you do not keep your body heat by walking.Socks are double knitted, from natural materials - cotton and fleece, for higher insulation and warmth. In addition, the bottom of the foot is knitted with loaded material to prevent the walk through effect. The loose hem guarantees a perfect flow of bloodstreem to keep your feet warm. The sock’s compact structure allows for retention of body heat. The sock has hems that stretch across the instep and ankle thus holding the sock in place, even in loose footwear. This sock is suitable wherever you walk, especially in cold conditions.