Features： 1、Anti?slip design, microparticle silica gel to prevent slip, anti?allergy design. 2、Can effectively prevent the allergy caused by the fabric. Comfortable wearing experience. 3、Contractive muscle flap, repair vein valve, promote blood flowing, light pressure. 4、Comfortable ventilation, lift and tension, sequential decompression, elastic bundle, no tension. 5、Helps to repair venous reflux, keep away from varicose veins, and improve the supporting effect. Specification： Item Type: Compression Stockings Material: Polyurethane Features: Contractive muscle flap, repair vein valve, promote blood flowing, light pressure, comfortable ventilation, lift and tension, sequential decompression, elastic bundle, no tension. Wear soft and comfortable, high elastic, arbitrary pull, no pilling SizeAnkleCalfWeight S16-21mm / 0.6-0.8in26-30mm / 1-1.2inBelow 99.2lb M18-25mm / 0.7-1in31-34mm / 1.2-1.3in99.2-121.3lb L22-28mm / 0.9-1.1in35-37mm / 1.4-1.5in121.3-137.8lb XL24-30mm / 0.9-1.2in38-41mm / 1.5-1.6in137.8-137.8lb XXL26-32mm / 1-1.3inAbove 42mm / 1.7inAbove 165.3lb Package List： 1 x Pair of Stockings