Hyperthermia Socks: Acupressure reflexology socks made of high quality raw materials, soft,breathable, insulating, absorbent, quick-drying, elastic thickened. The underside of the socks has a tourmaline design that heats itself to help your feet relax and unwind in cold weather. Self Heating Effect: Mild fever, foot warmer can be used for foot acupuncture point massage, stimulate blood circulation, focus soothing heat on the soles of the feet and toes, thereby improving blood circulation in the limbs and helping to protect the feet from the cold. Keep Feet Warm: The foot massage sock are made of high-quality polyester cotton material, soft and comfortable, with good breathability and excellent warmth retention. Super elastic and stretchy, one size fits most men and women. Function: Magnetic socks can relieve leg fatigue, relieve pain, regulate the nervous system, heat yourself, remove moisture and eliminate odours, remove swelling of legs and feet. Occasion: Ideal for various outdoor sports activities, such as camping, hiking , skiing, walking, running, cycling, mountaineering, winter fishing, jogging, winter hunting, ice hockey, snow removal, etc. Perfect Gift: Self Heating Socks Serves as a warm gift for your parents and friends, this is the best choice to keep your feet warm in the harsh winter. Packing list: 3 Pairs Heated Socks for Men Women(Red x 1,White x 1,Black x 1). Note: The pictures are just to show customers the hot spots, the correct way to wear the physiotherapy cocks is that the self-heating point on the sock should be in contact with the soles of the feet, not the soles of the shoes.