85% Nylon;10% Polyester;5% Copper Fibers Copper Compression Socks: Our socks extend their natural properties through our socks to restore blood circulation through copper fibers and provide 15-20 mmHg of compression. Reduce Injuries - Gentle compression, warmth, enhance blood movement through the legs. Eliminate pressure, stimulate every cell, relieve symptoms of varicose veins and excessive fluid retention. Helps relieve pain and discomfort associated with plantar fasciitis, provides true graduated compression to support your legs, reduces fatigue, soreness, cramps, while preventing injuries. Recover Faster - Our compression socks are designed to promote blood circulation and oxygen flow, prevent fatigue, and aid muscle recovery. Moisture wicking design eliminates irritating odors and increases wearing comfort. Increase Blood Circulation - Gentle compression warmth, enhance blood circulation in the legs. Perfect gift for joggers, athletes, sports enthusiasts, office workers, runners, nurses and doctors. A true must-have for those who stand for long hours at work, or those who have invested heavily in athletics and fitness lifestyles. List: 4 pairs of socks