Material:85% Nylon ; 10% Polyester ; 5% Copper Fiber Imported ?8 PAIRS-AMAZING OFFER - The pack of 8 is perfect for a whole week without having to worry about daily wash. You get a color combination of your choice. Why not enjoy this great value?Grab a few pairs for your family, friends, or loved ones as a gift that is functional and beneficial to their health! ?INCREASE CIRCULATION - We extended copper's natural property to enhance blood circulation through your legs along with providing a 20-30 mmHg compression.Remove stress and stimulate every cell, effectively reduce blood stasis in distal veins.A veritable necessity for anyone working long-hours standing on their feet, or those heavily invested in athletics and a fitness lifestyle. ?PERFORMANCE FABRIC KEEPS YOU DRY - Our products feature a unique copper-infused, moisture-wicking fabric that stays cooler when the temperature rises and warm in cold tempreture. We adopt the highest standard of producing professional sports socks,improving the air circulation and keeping your feet dry and comfortable all the time.Copper's unique properties help eliminate odor allowing you to wear longer without worry of offending those around you at the gym or at work. ?PHYSICIAN DESIGNED KNEE HIGH COMPRESSION SOCKS - Our compression socks are recommended by doctors and preferred by trainers. Provide mild squeezing of warmness and enhance blood circulation in your legs. It is great gift to joggers, athletes, workout fanatics, office workers, runners, nurses and doctors. ?100% REFUND - Shop with 100% confidence, if you are not happy with the purchase for any reasons, contact us for an exchange or 100% refund with no questions asked.