This is an unopened set of two "Kyutto" general medical support socks. Because they have no heel, they are less likely to slip and provide accurate graduated compression to the area, reducing stagnation of blood and lymph flow. No heel for secure fixation. Less likely to slip! Arch support lifts the sole of the foot for easier walking. ■Material: Nylon, Polyurethane ■Size: LL～3L, Calf circumference 36～45cm, Ankle circumference 22～28cm ■Made in Japan