Ideal for your cold-weather runs, the Mizuno Breath Thermo Balaclava keeps your head and neck fully covered so you can keep ticking off the miles no matter how frigid it gets. Featuring Mizuno's Breath Thermo® fabric, this balaclava is able to capture escaping body heat and circulate it to generate warmth. As an added benefit, mesh panels around the nose and mouth area allow for easier breathing.