New McDavid Large Rebound Compression Socks Black Large:Black or at the gym for GNXFP1175 RHT 11.75" Wht Blu or at the gym for a workout Flex grooves on the outsole mimic your foot's natural movement as you create separation Calves and feet benefit from increased blood circulation due to Targeted Compression® Technology Increases blood flow post exertion for a faster and more complete recovery Specialty yarns featuring seaweed and zinc help aid in recovery and provide extended comfort Anatomical 3D knitting design at toe and heel provides enhanced comfort protection Traction design at footbed for better floor grip hDc® Moisture Management Technology is cool and dry Millimeters of Mercury* (units of measurement no actual mercury) at ankle (18 21mmHg) and top of sock (12 7mmHg) to enhance blood flow Can be worn for extended periods of time Swiss made quality Includes one pair