Thank you for looking. These are "Power Socks" compression wear from SKINS. With their unique gradient compression technology, they are effective for improving performance during exercise and for recovery (reducing fatigue) after exercise. They are recommended not only for sports but also for preventing swelling during long periods of standing work or travel. [Product Details] Brand: SKINS Model: Power Socks (with BioAcceleration Technology) Color: Black / Yellow Stitch Size: S Condition: New and unused Model Number: B10001007 [Shipping] To keep shipping costs down and offer them at a lower price, the item will be shipped with **the contents removed from the box, and the box will be folded and included**. Please understand this in advance. Immediate purchase is welcome! Thank you.