Features: MOISTURE-WICKING MATERIAL Our compression socks are made of Nylon and Elastane, tight stitching and non-slip cuffs provide effective compression, delivers 360-degree stretch for greater flexibility and durability 15-25 mmHg COMPRESSION Our compression socks use graduated compression of 15-25 mmHg, the design of pressure from the ankle to the calf decreases gradually, which can squeeze the blood vessels in the calves, and then allow more blood and oxygen to flow to the muscles of the calves, so that oxygen and energy substances can enter the muscles faster, and also help metabolism Specification: Products name:compression socks Compression level:15-25mmHg Product Category:Pressure socks Color: black Product Category:Adult socks Thickness:Medium Fabric:Nylon Function: Shaping, anti-friction Suitable season:spring, autumn, winter, summer Style:Sports Package included: Package:2 pairs of socks Note: 1.Please allow 1-2cm size errors due to different computer resolutions. 2.Due to the different computer resolutions,There might be a bit color distortions. 3.Please leave 5 star feedback if you're satisfied with our products and service, we will appreciate it 4. If the products you received was damaged or or you do not know how to use it, please contact our customer service.