The Smith I/O MAG XL Snow Goggles take 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. The Smith I/O MAG XL Snow Goggles has everything to become your all-time favorite