Action Principle: Our compression socks provide 20-30mmHg compression. It has been medically proven to reduce swelling and varicose veins in legs by creating a "pressure gradient" that promotes blood flow between the feet, legs and heart. Doctors recommend compression socks with 20-30mmHg to control varicose veins and relieve leg fatigue better. Design: Graded pressure gradients provide excellent comfort, support, breathable and relief without limiting your movement. The fabric of our compression socks is synthesized by 70% nylon, 15% polyester and 15% spandex, which is smooth and comfortable, elastic and not easy to deform and shrink. Multiple patterns and color combinations are available which can be easily paired with your everyday outfits. Use Scenes: If you are someone with varicose veins, it can ease your calf discomfort. If not, it can also prevent varicose veins. If you are someone cannot avoid sitting or standing for long periods of time, it is your best friend during the long-time working. If you are pregnant,you can use it to relieve swelling in your calf. If you are a sports enthusiast, it can protect your muscles by compressing your calf while exercising, while improving your athletic performance. Best Gift: If you're a teacher, nurse, receptionist or waiter and need to stand for long periods of time, this is a great option for you. If you think it works, you can also recommend it to your family and friends. Our compression socks are an good gift for joggers, athletes, pregnant women, nurses and doctors.