Wsky Calf Compression Sleeve - Faster Recovery Muscular - 20-25 mmHg Leg Compression Socks Improves Circulation, Best Men and Women Leg Sleeves for Running,Working,Travel - Black (Large-XL) Material & size: 85%nylon+10%spandex+5% lycra, Made of nylon with soft touch, it is comfortable and air permeable, next to the skin and more durable. Wsky Calf Compression Sleeve fits the calf of 11 to 19. You can also refer to our measurement and choose the product. Athletic Function:it is used to prevent and relax joint sprain and muscle tear and relieve chronicle knee joint pain. Moreover, accelerate blood circulation, and therefore is adopted in rehabilitation, running, weight lifting and other activities in which knee joint bears great pressure. Additionally, it can relieve leg fatigue by accelerating the discharging of lactic acid. With great sweat conductivity and air permeability. Medical Function: According to the principle of pressure decreasing progressively in sequential phase, it forms a pressure gradient on legs from bottom to top to accelerate the blood circulation in legs, prevent varicose veins, relieve muscle fatigue and sour, promote metabolism by activating cells and get through meridian as well as prevent blood clot for postpartum mothers and patients lying in bed after surgery. It is also suitable for people standing or sitting for a long time. Shaping Function: it helps to shape your legs by accelerating fat burning. It consumes 3-5 times more calories walking or exercising with the leg protectors. 100% GUARANTEE: 100% GUARANTEE: Just Return It, WE OFFER A 100% MONEY-BACK (Or Replace It, If There Is A Problem) SATISFACTION GUARANTEE WITH NO QUESTIONS ASKED