Smith I/O MAG XLWe took the Smith MAG interchangeable system and integrated it with a more expansive window to the mountains. The I O MAG XL's extra large spherical ChromaPop lens enhances clarity and amplifies your experience. With OTG compatibility in mind, the I O MAG XL design integrates seamlessly into helmets to provide the ultimate fit and function as a fog free system. Vision Smith MAG interchangeable system Includes bright light and low light ChromaPop