These full-length Marathon compression socks by PRO Compression are the perfect combination of advanced materials and design, providing the ultimate in comfort and performance. The moisture control properties keep you dry, even during your most extreme activities. With the non-slip design, these compression socks will stay in place during all of your favorite endeavors. Graduated compression technology helps improve blood flow, resulting in less fatigue and a faster, more efficient recovery. In addition to improving vascular performance, Marathon compression socks provide support to critical muscles and tendons, helping reduce inflammation and soreness. Unlike traditional athletic socks, compression socks use stronger elastics to create significant pressure on your legs, ankles and feet. Compression socks are tightest at the ankles and gradually become less constrictive towards the knees. By compressing the surface veins, arteries and muscles, the circulating blood is forced through narrower circulatory channels. As a result, the arterial pressure is increased, which causes more blood to return to the heart and less blood to pool in the feet.