The Klim Balaclava meets the needs of a wide range of riders today. The lower half is constructed using Gore Windstopper® for complete protection from the wind while the upper half is constructed with Coolmax reducing heat under your helmet and controlling moisture from sweating. A lycra stretch back panel along with ergonomic patterning has created a perfect fitting balaclava. This technical head sock is guaranteed to be the most comfortable head sock you have ever worn.