One size fits all.
Compression socks and stockings are designed for compression therapy. They apply gentle pressure to your legs and ankles, promoting blood flow from your legs to your heart. Compression socks can also reduce pain and swelling in your ankles and legs.
Compression stockings apply pressure to your legs and ankles, which may:
reduce the diameter of major veins by increasing the volume and velocity of blood flow
help blood flow up toward the heart
help prevent blood from refluxing downward to the foot or laterally into superficial veins