1.75 % nylon; 25 % polyester 2.Büz 3. --- Please check the size graph!? 4. Zipper Closed Foot Foot Full Length Support-Prevent Full Length Venous Disease, 15-20 mmHg gradient winding, people with a certain protective and supportive role in the legs, and people with varicose veins, to promote Caspeded, to reduce the Casped to reduce the Caspress of the legs to reduce a particular protective and supportive role in the legs. Damage. 5.360 wraps your ankle in all directions-85% nylon; 10 % Polyester; 5 % copper fiber is comfortable and durable, extremely breathable, cotton circular zipper compression socks protect the soft fabric skin, zipper compression socks, three dimensions for most people used with zipper, calf muscles 15-20 mmHg Knee high support compression, squeezing the skin of the legs. Fabric for a beautiful look. Squeeze compression socks for women soft, for the comfort of wearing all day long. Using special manufacturing machines and comfortable resistant fabrics. We reduce muscle vibration and fatigue to prevent the thicker heel fabric area, more compact compressed knitting, sprained ankle. For example, this 15-20mmhg knee high circulation compression socks with zipper for doctors, nurses, teachers, runners, women, make all the calm muscles with the step pressure of the swollen leg fatigue of pregnant women, and keep the joints and muscles in a fixed state to prevent varicose veins.