PACK LESS, DO MORE Our 89% Merino wool blend is antimicrobial, quick drying, and insulating, and 11% Nylon blend helps the Merino wool retain its shape and be more abrasion resistant. The natural antimicrobial property of Merino wool keeps odors at bay, so there&';s no need to bring extra layers when you&';re on the road for extended periods. When the weather isn&';t your friend, it&';ll dry fast and keep you warm. And when it gets really cold, our wool is light enough to layer underneath a jacket (where the anti-odor quality thrives).