Wigwam the original sock liner in one. Repels moisture, merino wool softness, and cushiony sole. Comes in sizes Medium, Large and XL. Colors Heather Grey and Gun Metal. 40% Merino wool, 30% Stretch Nylon 25% Olefin, 5% Lycra Spandex. Liner 100% Olefin. Made in Sheboygan, WI USA.