☆ Thank you for viewing! (^_^) This product is "Kasahara-style Supporter Hosox." This product is "Hosox (ankle-length, 3-finger type)" supervised by Dr. Iwao Kasahara, which supports healthy feet by adjusting the balance of the soles of the feet. Features: With two built-in supporters and a 3-finger structure, just by wearing it, the soles of your feet are stabilized, reducing the burden on your shins, calves, and thighs. Black, Size S 22-23cm ★ I received this a few years ago, but I haven't used it and have stored it at home. Although it is unused, it has been opened and inspected due to long-term storage. If you don't mind, please consider it. (^_^) ★ I inspect to make sure there are no oversights, but please understand that this is a layman's inspection. (^_^) ★ To deliver it to you at a slightly lower price, we will ship it compactly. ★ Please purchase if you agree with the above. (^_^) ★ Please feel free to comment if you have any questions. Thank you for viewing! (^o^)