Feature: 1. Gradient Compression: Women's open toe compression stockings use gradient compression technology to help relieve leg swelling, varicose veins, blood clots and deep vein thrombosis. 2. Improves Blood Circulation: Thin compression socks improves blood circulation and helps relieve leg fatigue, pain, and slight swelling of the feet and ankles during pregnancy. 3. Nylon And Polyurethane: Compression socks is made of high quality nylon and polyurethane fabric, soft and silky, skin friendly and breathable, durable. 4. High Resilience: Fine workmanship, three dimensional cutting, high resilience, not easy to deform, delicate without rubbing your feet, comfortable to wear. 5. Portable Design: Helps maintain healthy legs, simple and fashionable appearance.Small and light weight, easy to carry, perfect for home and travel use. Specification: Item Type: Compression Socks Material: Nylon, Polyurethane Pressure Rating: I level pressure (15-20mmHg) Style: Middle Tube (Under the knee) Product Size: Circumference of Ankle Thin Area: Approx. 30-32cm / 11.8-12.6in Circumference of Calf Thick Area: Approx. 43-45cm / 16.9-17.7in. Package List: 2 x Compression Socks Note: Please allow slight error due to manual measurement. Thanks for your understanding.