Bell-Horn Medical Thigh High Stockings offer medical strength compression to help alleviate swelling, chronic leg fatigue, and helps prevent clotting after surgeries. The thigh length stockings are available in two strong compressions: 20-30 mmHg and 30-40 mmHg. They also come in two styles (closed toe and open toe). Select the Medical Thigh High Stockings in one of four sizes: S, M, L, & XL.