Designed to help keep your little one's toes nice and cozy, the Kids' Wintersport Polar Bear is perfect for winter adventures. With a lightly cushioned shin and foot, these are right at home on the slopes.. . 74% Merino Wool/25% Nylon/1% Elastane. Light cushioned shin and sole for impact absorption and warmth. Sock Height: Over-the-Calf. Flat knit toe seam. Made in USA of Imported Yarns.