Wigwam Men's Snow Hellion Pro Ultimax Knee High Merino Wool Performance Ski Sock 50% Merino Wool/42% Stretch Nylon/7% Tencel/1% Spandex Made in US Machine Wash Made in the USA Ultimax pro and merino wool, cushioned sole and shin Dry feet, no blisters, no odor, no itching, no shrinking Dri-release tencel is soft, super-fast drying, everlasting wicking Ski and snowboard sock