DescriptionSelf-heating socks are made of high-quality materials, which are practical and durable. The bottom of the socks has a heating design, which can be heated in cold weather. Effectively relieve leg pain and fatigue, regulate the nervous system, and provide you with foot massage care.Features-Color: Assorted Color.-Material: Cotton.-Size: About29.00X9.50X0.10cm/11.40X3.73X0.04in.-Self-heating design. It is suitable for skiing, climbing, skating and cycling in the cold winter.- Using high-quality materials, durable and safe to use. Very suitable for those who are afraid of cold.- Effectively relieve leg pain and fatigue, regulate the nervous system, and provide you with foot massage care.- Comfortable and light, no matter indoor or outdoor activities, it can give you intimate care and companionship.- It has a practical mid-tube design to ensure good warmth and keep you warmer.Packing list3 x pairs of socks