When the I/O series first came out I couldn't stand the look of them, but over time the look has grown on me. When I lost my pair of yellow tinted googles I decided to take the plunge and buy a set with interchangeable lenses. It came down to the I/O X and airbrake, and after borrowing some from friends I decided on the I/O X because they were a slightly bigger fit, and came with lens tint options that I thought would be better for my normal conditions. So far I am happy with the googles, however I feel like the field of vision is slightly less than on my previous Oakley Crowbars...that being said its not really an issue, just something I notice a bit when I'm sitting on the chairlift, but not when I'm heading down the mountain. I would buy this again, especially if I can find it on sale at end of season.