The Fits Light Runner Solid Low Socks are cushioned socks that your shoe will not eat. High impact cushioning only where you need it in the toe cup and the heel lock areas. The Light Runner delivers pavement-pounding performance in every stride.Features: Fits patented Full Contact Fit hugs the contours of your foot and stays put so there is no loose socks to rub you the wrong way This low cut sock will not fall down into your shoe Toe and Heel Lock high impact cushioning Narrow welt just above the shoe Super-fine Made in the USA Machine washable Fabric: 73% Merino Wool, 21% Nylon, 4% Polyester, 2% Lycra