Plunging temperatures don't have to mean foregoing the thrills of mountain biking. The cozy Defend Winter Socks are a vital addition to your winter riding kit, keeping the bite of winter from freezing your toes. While the wool fibers trap warmth, polyester is in the mix to draw sweat away from the skin, ensuring feet remain dry and comfortable. When the going gets rough, the cushioned heel and toe areas provide some extra shock-absorption. There's also cushioning across the shin, fending off pedal strikes and debris kicked up off the trail. A rib-knit upper maintains a slip-free fit while the flat-stitch toe construction removes any irritation inside your shoes.