Aero shaping and tons of ventilation makes Mavic's CXR Ultimate Helmet a winning choice, no matter if you're on a training ride or in the middle of your most important race of the season. 28 enormous vents channel a torrent of air through the CXR Ultimate. And, the CXR shape cuts through the air, minimizing drag for higher on-the-road efficiency. At 250 grams, it's a certified lightweight. Yet Mavic infused comfort in addition to the stellar performance with their CXR Fit Pad and Ergo Hold SL retention system, which provides an easy-to-adjust fit.