Windproof, light as a feather and with all the benefits of the finest merino wool: Merino Protect is the revolutionary combination of a lightweight windbreaker and a unique material blend: Over 50 percent fine merino fibers make the Merino Windbreaker an extraordinary jacket that is completely windproof and features all the benefits of its natural merino fibers. Thanks to the high wool content, the material can regulate moisture and temperature levels is odor neutralizing and pleasant on the skin.