Why copper- the copper woven into our copper sport compression sock can help stimulate blood flow to the affected area, whilst also helping to work towards relieving inflammation. The copper compression sock can help relieve stiffness and soreness from sports injuries. increased performance - experience increased running performance and the ability to maintain your leg power after endurance exercises. The sock will also help give great post exercise recovery, getting you back training again quicker than you think! super high copper content- our copper sport copper compression knee sock is made from 88% copper nylon and 12% spandex, making this one of the highest copper content socks on the market. dry and anti-odor - our copper nylon has anti-microbial deodorizing capabilities that can stop the increase of various bacteria and fungi, preventing any bad odors building up whilst wearing the sock. The fabric of the sock is moisture-wicking, taking away sweat quickly to maintain dry and clean skin. compression comfort - our knee sock is incredibly comfortable and feels very smooth against the skin. It can be comfortably worn all day, or overnight. Should you wish, you can choose a tighter compression by choosing a size down on our size chart in the product photos.