I/O Mag XL Snow GogglesSmith Optics I O Mag XL Snow Goggles You can only scope your line if you can see where you're going. Putting on the Smith I O MAG XL goggles is like flipping the switch from regular to extra widescreen. Our ChromaPop lens tech boosts color and contrast, so you get the clearest picture of the terrain ahead. Our highest level of anti fog treatment and air flow keep the view sharp. Whether the day dawns clear or stormy, lens swaps are a snap thanks to