Winter-weight Merino Wool Blend provides warmth and great moisture management in this versatile sock that every kind of rider can appreciate in cool weather. It's thin enough to get a precise fit inside your cycling shoe yet durable enough to wear on and off-road. Plus it's also naturally resistant to odors and helps to wick moisture away from your skin. 70% Merino Wool 15% Polyester 10% Lycra 5% Elastic