A sock designed specifically for kids who are highly active on the slopes. Designed with light cushioning all around the the foot for warmth and protection. Knit with Merino Wool that provides all-day warmth while wicking moisture away from the foot. This sock will keep their feet warm and comfortable all day long.10% Stretch Nylon with LYCRA all throughout the sock means no slipping or bunching up. These socks will stay up in your ski boots all day long.