Smith I/O Goggle Features:
Smith's I/O is the standard by which other goggles are measure. Featuring interchangeable lenses, the I/O can be easily tuned to the conditions thanks to its quick release lens system. These Smith Lenses have a 5x Anti-Fog treatment and Smith use 3-layer Drywix foam to create a better seal between the goggles and your skin. Helmet compatible and with an extra-wide, silicon backed strap the Smith I/O goggles offer both high-performance and optimum comfort.