3 Pair Socks Self Heating Warm Tourmaline Socks Pain Relief Unisex Features: Made of high-quality polyester cotton with the characteristics of soft and comfortable, has a long life. The bottom of socks has Tourmaline design which can self-heating to warm and your feet in cold weather. Tourmaline socks relieve leg fatigue, pain, regulate the nervous system, self-heating, remove moisture and stop odor remove swelling of the legs and feet peeling of the skin, produce a static foot massage, regulate blood flow. The perfect tool for legs with varicose veins, as well as in renal failure. Good therapy for the ankles and feet when frostbite. To stimulate acupuncture points. Daily use any time of day. Wash under running warm water without detergents. Great for outdoor activities: skiing, snowboarding, hiking and other sports. Specifications: Material:Tourmaline,Polyester cotton Item Type:Braces & Supports Color:White,red,black Type:Tourmaline socks Effect:Anti-fatigue Massage Socks:Health Care Socks Tourmaline Massage Sock:Self-heating Tourmaline Socks Contains: 3 x pair of self-heating Tourmaline socks