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 relax 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 of day. Wash under running warm water without detergents. ● Great for outdoor activities: skiing, snowboarding, hiking, hockey, and other sports. Specifications: - Material: Tourmaline, Polyester cotton - Color: Red, White, Black - Product specifications: 38-44 yard feet - Product function: Improve the microcirculation of the feet, perform static massage on the soles of the feet, relieve fatigue and relieve sore feet - Product features: dense silicone heating moxibustion points, comfortable and warm to wear Package Include: 1 Pair of Self-heating Tourmaline Socks