The Smith Mainline MIPS® Mountain Bike Helmet is made for going big, going fast, or both. This helmet is Smith’s pinnacle, downhill certified enduro bike helmet as it features safety innovations like Koroyd™ and MIPS®v to provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. The Mainline integrates with your bike goggles for efficient venting and fog-free vision, while its multiple pad sets including liners and neck-rolls let you customize the fit. Land that rocky gap safely with the Smith Mainline MIPS® Mountain Bike Helmet!