1、It is made of high-quality materials. Breathable and sweat-absorbing, not easy to fall off, simple and comfortable. 2、Anti-slipping design, micro-particle silica gel at the mouth of the stockings to prevent the movement from falling, allergy design, can effectively prevent allergies caused by fabrics. 3、High-tech manufacturing standard pressure, ease the pressure of the static valve, 360-degree circulation soft compression, reaching multi-part pressure, fit the leg, high elasticity, comfortable wearing action. 4、Contracting muscle flap, repairing venous valve, promoting blood return, soft pressing, comfortable ventilation, lifting and tightening, sequential decompression, elastic beam, not tight. 5、Compression socks are suitable for the prevention of venous diseases and auxiliary treatment caused by varicose veins or lower extremity venous blood reflux disorders. Condition: 100% Brand New Item Type: Compression  Stockings Material: polyurethane fiber Color: black Dressing season: suitable for spring, summer, autumn and winter Optional Size: S, M, L, XL, XXL Size A(cm/in)(Measure ankle in a circle) B(cm/in)(Measure calf thick in a circle ) S 16-21/6.3-8.3 26-30/10.2-11.8 M 18-25/7.1-9.8 31-34/12.2-13.4 L 22-28/8.7-11 35-37/13.8-14.6 XL 24-30/9.4-11.8 38-41/15-16.1 XXL 26-32/14.2-12.6 Above 42/16.5 2 x Compression  Stockings