Material: Made of high quality polyester cotton, it has soft and comfortable properties and a long lifespan. The underside of the sock has a tourmaline that heats up to keep feet warm in cold weather. The socks have a universal size and are suitable for different foot sizes.Design: The underside of the sock is designed with tourmaline, which automatically heats up in cold weather and relaxes your feet. Ideal for outdoor activities, skiing, snowboarding, hiking, hockey and other sports.Principle of operation: Foot massage has been used for thousands of years for prevention and treatment of various diseases. According to traditional Chinese medicine theory, the point of reflection is on the sole of the foot. Stimulation in these places (massage, heat, acupuncture, etc.) has a positive effect on the corresponding organs.Function: Magnetic socks can relieve fatigue in the legs, relieve pain, regulate the nervous system, warm up yourself, remove moisture and eliminate odors, eliminate swelling in legs and feet, remove skin, create a static foot massage, regulate blood circulation. Warm socks can relieve chronic foot diseases such as blood circulation disorders, arthritis, colds, or other ag symptoms.Stay away from the cold: with these thermal socks, you can keep all winter away from the cold, so that you can at any time release the heat from the heat. You can also wear our heated socks for all outdoor activities, no: skiing, skating, hiking, hunting, fishing, etc.