When smith created the I/O, the original interchangeable goggle they created a whole new category of goggles. With its quick release lens system, spherical Carbonic-X Lens with their TLT optics, patented Vaporator lens and 5X anti fog inner lens its easy to see why the Smith I/O is the gold standard for interchangeable goggles.
Photochromic Red Sensor
Combining our proprietary Red Sensor mirror outer lens with a revolutionary, new visible-light activated photochromic inner lens for all day riding in varying light conditions.
Comes with a free "Blackout" Bonus Lens!
A Dark Gray lens tint that cuts glare and reduces eye fatigue in very bright, exposed sunny conditions. Also effective at altitudes where bright conditions can become exponentially more powerful from the glare created when powerful mid-day sun reflects off of the snow. Provides 100% protection from harmful UVA/B/C rays.