These Calf Compression Socks are made of nylon wire material which can provide use. High-performance fabrics made of breathable and moisture-absorbing material can maintain the best temperature and provide greater comfort. Features - Color: Black -Material:Nylon wire - Size: 47.00X9.00X0.70cm/18.47X3.54X0.28in -Compression Stockings can reduce upward pressure from the ankle, promote venous return in lower legs and arms, and relieve venous valve-pressure. -Open-toed calf compression socks are knee-high, easy to put on and take off, effectively dissipate heat when wearing, keep the legs comfortable, prevent muscle strain, fit the leg curve, three-dimensional wrapping, and even compression. -Toe compression stockings can accelerate blood circulation and oxygen flow, reduce foot soreness after exercise, keep joints and muscles in a stable state, and prevent veins. -Compression stockings are made of nylon wire material and are performed from the lower leg from the lower part of the calf, the steps produce some compression. -Fine workmanship and simple appearance ensure its popularity and practicality. Package list: 4 x Pairs of Compression Stockings