Cannondale set out to design a mountain bike helmet, they had one goal in mind: to create the most comfortable and well-ventilated helmet possible. The result of their efforts is the Radius MTN Helmet. This helmet features ample ventilation to keep your head cool, and its plush interior ensures a comfortable fit. Plus, the adjustable visor provides additional protection from the sun and rain. If you’re looking for a great-fitting and highly-ventilated mountain bike helmet, the Cannondale Radius MTN Helmet is a perfect choice.