There is black white red color, please leave a message which color you want.If you donnot leave a message, we will send you a random color. Thanks for your understanding dear friend The far infrared sock is also called negative ion sock, a kind of health product base on far infrared fabric combined with spandex. It could constantly produce negative ion and biology wave for human beings. They all have thermo effect to human body. They could activate biological molecules and water molecules in human body, promote blood circulation and metabolism, and improve immunity. Feature 1. Adopted Tourmaline functional fiber releases "longevous element" & "air vitamin", anion. 2. Far infrared emitted by Tourmaline eases pain caused by various factors. 3. Function of antibacterial and deodorization. 4. Intenerate genial blood vessel, improve foot blood micro-circulation. 5. Special bene-fit for foot and ankle. 6. One size fits all.

20.5 USD InStock