6 Pairs Pack Men's Merino Wool Blend Extreme Weather Thermal Winter Boot Socks 10-13 Full Cushioned Merino Wool Blend Socks are Specially designed for warmath, comfort and performance 55% Merino Wool , 14% Acrylic , 24% Polyester , 7% Spandex. Extra Cushion ensures durability .Warm and comfort.Suitable for Hiking , Protection from cold 100% Money back guarantee if you are not happy with our socks Size : 10-13( fit shoe size 8-13)