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A simple look and crazy-complex tech—opposites really do attract.

The Smith Photochromic I/O Interchangeable Goggles take a sleek, streamlined design with a wide peripheral view and dumps in the kind of tech that you'd  expect to see in a science fiction movie. The double-layered lens system stops fog and distortion to make sure you can see where you're going while the photochromic treatment takes these goggles from light to dark and back to make sure you're ready for whatever kind of light is coming down. It's almost hard to imagine that such a straightforward look could be packing so much heat.

  • Seamless helmet integration makes your helmet and your goggles one streamlined unit
  • Spherical Carbonic-X lens with TLT optics are individually molded to offer you a clear, distortion-free view
  • Photochromic treatment on the inner lens qtuickly changes tint levels to fit the conditions
  • Vaporator Lens Technology uses a Porex filter and a silicone seal to adjust to air pressure and prevent fogging
  • Quick-release lens system lets you swap out lenses at lighting-fast speeds
  • 5X anti-fog inner lens has a hydrophilic, micro-etched surface to stop fog before it can even start
  • Nearly frameless design throws down with wide, unrestricted peripheral vision
  • Triple-layer DriWix face foam with fleece lining creates a smooth seal with your face and is insanely soft
  • Ultra-wide silicone-coated strap with QuickFit strap adjustment holds these goggles to your head
  • Microfiber goggle bag has a replacement lens sleeve safely get your goggles to and from the mountain
  • Comes with one photochromic and one non-photochromic replacement lens

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Here's what others have to say...


Great google

  • Familiarity:I've used it several times

I have been able to use these a couple of days this season already. Overall, I have been really pleased. The lenses are great in sun and shade, transitioning seamlessly between either. They are comfortable and provide great eye coverage. From a design and aesthetic standpoint, they look great.


Photochromic is Phenomenal!!!

  • Familiarity:I've used it several times

No matter which style goggle you choose make sure you choose the Photochromic lenses! These lenses are unbelievably versatile, from white out conditions to bright blue bird days and everything in between these lenses allow you to have crisp clear visibility.

The lenses actually change, so when you pull them out of the box and on grey bird days they will look more like the red sensor lens, but when you hit some light they turn more into a solar x type lens (and have the mirrored looked to go with).

All and all I have never been so excited about something so seemingly small, but this is something to get excited about!

Photochromic is Phenomenal!!!

Great goggle and GREAT service from BC

    Very comfortable goggle with decent adaptability given lighting conditions. I used to use Zeal's photochromatic goggles and there are on par and give me a different tint than the more gray/black of the Zeal goggle. I had a slight glitch with my I/Os however, but backcountry service took care of it right away - you guys rock.


    Very comfortable

      love these goggles, photochromic lens don't go very dark in bright sunlight which I really like about these lens. So far no issues with fogging and very good view as well, much better than my previous pair of goggles.

      Very comfortable

      Fogging issues

      • Gender:Female
      • Familiarity:I've used it several times

      I have had several fogging issues with this lens. I used a anti fog wipe (which i know you shouldnt) which seemed to help. But these lens seem to fog more than they should. The photochromic lens works okay. never seem to notice a huge difference from light to dark. I often think they should be darker than they are most of the time. I have a small face and the frame fits well.

      I too have noticed the fogging, and it is pretty annoying. Hoping to find a goggle that doesn't fog this easy! Also agree that the photo lenses, while they work pretty well, haven't really blown me away.

      What is the the range of % VLT for the...

      What is the the range of % VLT for the smith photochromic lens?

      Best Answer

      From what I read, 20-50% for the photochromic lens.