Description:Wearing these socks with tourmaline arrays improve foot microcirculation, provide static massage to the soles of the feet, and eliminate fatigue.When you wear the middle cut unisex socks, it is help to protect your ankle, and it has good therapy for the ankles and feet when you're frostbite.Made of high quality polyester with the characteristics of soft and comfortable, the socks have a long life. Fits the curve of the foot so that the hot spot is close to the sole skin.There is one size, the stretchy socks are suitable for most people to wear.Winter warm socks ideal for outdoor activities, skiing, snowboarding, hiking, hockey and other sports, which automatically warms up in cold weather and relaxes your feet. Featured by sticky dots on the bottom of the non-slip yoga socks, our unisex anti skids socks offer better grip for improved stability and balance so that you can stay safe, avoid injuries and have better control of your body movements.Item Name: Self-heating SocksMaterial: PolyesterGender: UnisexSeason: Autumn, WinterSock Length: Mid-tubeFeatures: Self-Heating, Tourmaline, Anti-fatigueSize Details:L: 28cm/11.02", W: 8cm/3.15", H: 1cm/0.39"(Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Self-heating Socks