We needed to find a way to add air flow without compromising the clean look of our Classic helmet. We didn’t want to simply put holes on the crown that would allow snow and water to flow directly to your head. Instead,the Classic 2.0 features Under Cover Venting: designed to let air enter the helmet from below the brim and through the front Slash Vent. This air flow then moves through channels in the liner that run up and over the crown, collecting excess heat and moisture rising up the Chimney Vents, exhaustingit all out the Rear Vents. The end result? A cooler ride.