4 Pairs Pack Men's 73% Merino Wool Hiking Thermal Socks 10-13 * MADE IN USA* Made in USA Materials : 73% Merino wool , 25% Polyester , 2% Spandex Premium Quality american made merino wool socks with full cushioned for warmth and comfort. Moisture management fiber in foot bottom wicks moisture and maintains cushion Size : 10-13 ( fit men shoe size 6 to 11 ) Heavy Weight high performance socks for low price