Features: 1. 20-30 mmHg Graduated Compression: Compression socks provide true graduated compression to your leg; The pressure from the bottom to up can promote the return of venous blood, while giving the valve a positive pressure to help improve the valve function, preventing varicose veins, shin splints and post-surgical treatments. 2. Improve Circulation: Therapeutic compression hosiery which promotes , helps relieve tired, aching, fatigued legs. 3. Reduce and Prevent Swelling: Ideal for treatment of varicose and spider veins, diabetic support, long flights and general swelling or inflammation of the legs and feet. 4. Open Toe and High Knee Design: Open toes design does not compress toes and squeeze your aching toe joints, preventing pains. 5. All Day Comfort: Our compression socks is made of 25% spandex and 75% nylon, lightweight, breathable, sweat-absorbent and anti-slip material ensures the comfortable wearing experience. Specification: Color: black/flesh Size: M/L/XL Material: 25% spandex + 75% nylon Pressure value 20-30mmHg Packing list: 1 x Pair of Varicose Vein Stockings