I’ve been wearing the Smith I/O goggles for two full seasons (Over 200 days) and can’t think of a bad thing to say about them. The obvious favorite feature is the easily interchangeable lenses. Changing lenses has never been easier! I used to dread changing lenses when light conditions would change, and often times would leave the lens that was currently in the goggle frame. Now, I don’t even hesitate a second, as changing lenses only takes 20-30 seconds. An additional feature of this lens is the microfiber Porex lens filter that prevents fogging between the lenses. The inner and outer lens are bonded together by a silicon bead, leaving them airtight, aside from the Porex filter, which keeps moist air out while allowing air to circulate.
I got the chance to go to the Sportworks factory outside of Seattle, and actually saw an I/O lens get cut and bonded to the inner lens. Below is a photo of a robotic arm grabbing shaped sheets of lens material and cutting them to their correct shape. The cut lenses are then bonded to the inner lens with a bead of silicon.
The end result is an extremely functional goggle, that has some pretty cool designs too. Go to the Smith Optics website to see the entire selection of I/O goggles.