An incredibly warm base layer perfect for skiing, winter hiking and cold-weather layering, the Merino 260 Tech legging with fly is made from 100% merino wool jersey (excluding the elastic band) for superior softness, insulation and breathability. A warmer version of our popular Oasis leggings, these odor-resistant bottoms also feature gussets for range of motion and flat seams to prevent chafing. Inspired by nature, icebreaker harnesses the performance qualities of natural fibers and offers an alternative to garments made from petrochemical synthetic fabrics. Merino wool is an annually renewable fiber that naturally resists odors, keeping you cool when it's hot and warm when it's cool. Plus, it lets your skin breathe comfortably all day, every day.