SMc302 wrote a review of Smith I/O Interchangeable Goggle on February 3, 2013
Familiarity: I've used it several times
Despite having never purchased anything but the best sunglasses, for whatever reason I had always settled for entry level goggles. What an incredible difference these are over my old Phenoms. With the low light in the PNW and high likelyhood of getting pow everywhere, maintaining good visibility had been a challenge. Hauling down a face only to be knocked on your ass by a mogul or dip in the snow that you couldn't really make out until it was too late is incredibly frustrating - the clarity with the red sensors in low light is great and allows me to anticipate the terrain before I'm right on top of it. I put my facemask on while hiking up a ridgeline to test out the fogging-resistance: while it did fog up after a little while (I was purposely huffing pretty hard), it vanished within seconds. Amazing how much you can fine-tune your skills and have even better days with good vision. I'm definitely kicking myself for not getting a pair of these earlier.