Humanized fit design: adjust the foot curvature, make the hot spots close to the skin of the foot sole, static massage of the foot sole to eliminate fatigue and relieve foot pain. When walking, wearing our tourmaline socks is a natural and relaxing way to enjoy new vitality and comfort. KEEP YOUR FEET WARM:The bottom of the socks has a tourmaline design that self-warms to regulate blood circulation, and warmth to relax your feet. You will never stand in the rain Self-heating effect: light fever, foot warmer can be used for foot acupuncture point massage and has a warming effect on cold feet. Can relieve leg fatigue and regulate the nervous system. Self-heating eliminates moisture, odour and swelling of the legs to regulate blood circulation. Adjustment function: heated socks can relieve leg fatigue, relieve pain, regulate the nervous system, remove moisture and eliminate odours, eliminate swelling of legs and feet, create static foot massage, regulate blood circulation. Warm socks can relieve chronic foot diseases. STAY AWAY FROM THE COLD - With these thermal socks, you can keep away from the cold all winter so you can give off the warmth of warmth at every moment. You can also wear our heated socks in all outdoor activities except skiing, ice skating, hiking, hunting, fishing etc.