If you're serious about biking in cold weather, make sure your feet and ankles are well-protected on the mountain. These Winter Wool Socks are tall enough to keep your ankles warm and ensure your feet stay comfortable and dry throughout the entire ride. Made from a merino blend, these socks were specifically designed for the trail and feature a fully cushioned, comfortable construction, providing extra warmth and insulation for cozy toes. Stay warmer, ride longer. Composition: 66% Merino Wool, 22% Nylon, 9% Polyester, 3% Elastane.