Smith I/OS Goggle: as a continuation of the I/O, the I/OS Goggle is a champion of versatility, providing quick and easy lens interchangeability through its Quick Release Lens System: just flip the top switches, pop the lens out and replace it with a lens more suited for the conditions. Fashioned with a revolutionary outrigger locking mechanism, the I/OS Goggle takes its progression even further. Its relentless attack on visual imparities in varying conditions puts the I/OS at the head of the class. The watchful eye of its spherical, Carbonic-X Lens with TLT Optics projects an undeterred and undistorted visual field that maps out the terrain in front of you with unparalleled precision. It’s also sealed with the worlds strongest thermal lens barrier - Smith Optics patented Vapor Lens Technology with Porex Filter that prevents lens delamination and allows the lens to adapt in changing elevations. Lined with dual-layer DriWix Face Foam, you will discover the true meaning of comfort as moisture and wind are sealed out; nothing but pure visual bliss is allowed to enter through the eyes of the I/O Goggle. Enjoy its style and craftsmanship from the very first chair to the very last call of the season.