【20-30 mmHg Graduated Compression Level】 This is what we would refer to as “firm or medical compression”. The most common use of 20-30 mmHg compression hose is for varicose veins; moderate swelling and edema; arterial and venous insufficiencies; reducing pooling of blood in the legs; protection against deep vein thrombosis (DVT); during and after pregnancy and frequent and long distance travel. By providing a higher level of support, these compression dress socks are designed to improve blood flow and alleviate pain and increased levels of discomfort. Graduated compression pushes de-oxygenated blood from the veins back to the heart and allows the flow of oxygen-rich blood back to your legs resulting in greater strength and vitality. GRADUATED COMPRESSION: 20-30mmHg Compression stockings establish the highest support pressure at the ankle and gradually decrease along the legs,It is reduced to 70-90% of the maximum pressure at the calf and 20%-40% of the maximum pressure at the thigh.This gradual change can make the lower extremity venous blood return, effectively alleviate or improve the pressure on the lower extremity veins and venous valves. KEEP HEALTHY: Our thigh high compression socks give the support for the legs, enhance blood circulation effectively, and reduce swelling without any tight. Good compression for pregnancy varicose veins to keeps your leg healthy. Keep good compression doing works, relieve muscle fatigue, and soreness after long time exercise. FOOTLESS DESIGN: Footless compression socks will perfect fitting on your leg and feet, have more flexibility and adjustable space and it is easy to put on and put off. Without any scratch and irritation during you use the socks. You will don't have any uncomfortable feelings even put on the day in and day out. BREATHABLE & SUITABLE COMPRESSION: Utilizing nylon and spandex material, make the compression socks have better elasticity & durable, keep comfort, and breathable at the same time. Moisture-wicking properties rapidly and quick-drying keep your legs comfortable and dry all day. PERFECT FOR ANY OCCASION: Comfortable compression support hose ideal for people who sitting or standing for long time. Such as office worker, nurse, flight attendant, shopping guide, teacher etc.