Self-heating Socks Comfortable Stretch Durable Massage Warm And Cold-resistant Cotton Socksfeature: High-quality soft material, not easy to damage the skin. All colors are not easy to fade. Cotton is the material to keep warm in winter The complete geometry is not easily deformed. Cotton heating socks The heating socks are made of high-quality cotton fiber. They are soft, absorbent, quick-drying, breathable and elastic. Insulation materials can provide you with safe socks to keep your feet warm and comfortable in the cold winter. Combining with ergonomic design, the winter warm socks can be evenly heated and the temperature is stable, which can stimulate the blood circulation of the feet, so that the feet are no longer cold and stiff in winter.describe: Material: Cotton Package Contents:1 pair of socks