The North Face says about the Fastech Balaclava
Whether you're ski touring in the backcountry or running trails, the Fastech Balaclava provides all the warmth you need. It's engineered with FlashDry™ technology that wicks away sweat and moisture to keep you dry while you up the ante on your sporting pursuits. A hinged construction and under-helmet hood offer versatile coverage and comfort in all conditions.