Keep your feet warm in these wool blend boot socks.Materials: 65% Acrylic/20% Merino Wool/13% Nylon/2% spandex. Premium Merino Wool keeps feet warm while wicking away moisture naturally. Acrylic wicks moisture away, keeping the foot drier. High performance boot length socks. Cushioned leg and foot for extra comfort. Arch support for added fit and circulation. Smooth flat toe seam.