The Ninja is our thinnest and lightest-weight balaclava. Made of breathable quick-dry polyester, it performs more like a baselayer than outerwear. The Ninja easily slips in under hats, hoods, goggles, and helmets, and the hinged design gives you options on how to wear it. Go full-ninja with the solid black option, or keep things light with one of three novelty prints.