Under Armour Women's Palma Ski Socks Acrylic 90% acrylic, 8% nylon, 2% Lycra spandex Ski socks ColdGear moisture-wicking performance fabric Signature Moisture Transport: a combination of moisture-wicking yarns and strategic mesh ventilation ArmourBlock technology neutralizes the microbes that cause odor before there is any odor at all, which results in moisture transport with maximum scent suppression