Keep Feet Warm -- Tourmaline thermal circulation self-heating shaping socks are made of high quality polyester cotton with the characteristics of sSoft and comfortable, which has a long life. Fits the curve of the foot so that the hot spot is close to the sole skin. Self Heating Foot Massage -- Tourmaline thermal circulation self-heating shaping socks use high quality natural hot spot by stimulating the acupuncture points of the feet to achieves a massage effect. Enjoy new vitality and comfort using our socks which is the natural and effortless way while you walk. Multifunction -- AFIZ tourmaline socks can relieve foot and leg fatigue, regulate the nervous system, remove moisture and eliminate odours, create static foot massage, regulate blood circulation. Non Slip Grip Design -- Tourmaline thermal circulation self-heating shaping socks featured by sticky dots on the bottom, offer better grip for improved stability and balance so that you can stay safe, avoid injuries and have better control of your body movements. Comfortable Exercise -- AFIZ tourmaline health socks are ideal for outdoor activities, skiing, snowboarding, hiking, hockey and other sports, which automatically warms up in cold weather and relaxes your feet. Tourmaline Thermal Circulation Self-Heating Shaping Socks, AFIZ Tourmaline Slimming Health Sock, Tourmaline Socks, Tourmaline Acupressure Self-Heating Shaping Socks Specifications: Material: Tourmaline, Polyester cotton Color: White, Black, Red Effect: Keep Warm, Cold Resistance Size: One Size Package Includes: 3/6 Pairs * tourmaline thermal circulation self-heating shaping socks Note: 1. Due to manual measurement, please allow 1-3cm difference, thank you for your understanding 2. Due to the difference of different monitors, please note that the picture may not reflect the actual color of the item.