Danimalwrote a review of Smith I/OS Interchangeable Optic Goggle on January 9, 2012
I have gone through countless goggles in the past 8 seasons I have been riding. They truly have the most premium goggle without the premium price tag. Oakleys splice goggles that are attempting to be faster that have been released 2011/2012 are 220.... Smiths goggles for 2 lenses, precise fit, premium comfort, and optimum vision are 164. You can get a comparable Electric goggle for 150 but only recieve one lens. I'll spend 14 extra bucks for a lifetime warrenty any day. Smith is local to Utah so if anything under warrenty happens to your goggles it takes just a matter of days to resolve your problem and get them back. The clip is SO nice and makes for easier faster adjusting. Silicone-backed strap is great so your strap doesnt slide around on your helmet or beanie. Silicone beading inbetween your double lens makes for a longer lifetime of your lens and actually WORKS with the porex filter. One thing I do HIGHLY suggest is to allow your porex filter to breath after a day filled with moisture to ensure your lens is ready to rock and roll the next day so no moisture gets trapped inbetween the double lens(let it hang outside of its bag in a safe place). Also SO nice to know that they impregnate their fog coating inside the inner lens so you dont have to worry about wiping the fog coating off(still a thinner more sensitive lense, treat with care). Sensor mirror is fantastic night boarding/skiing. These lenses are like veiwing the world in HD. Genuinly awesome company.