Overall, I love these inserts much better than contacts. I tested them on Smith Knowledge OTG goggles, IO/X goggles and IO/X turbo fan goggles and they work on all of them. They also work on my pair of Smith Pivlock V2 sunglasses.
My only complaint is that they're difficult to snap into place on the goggles, but they'll work. They hold in place very nicely and offer a good field of view. I would recommend the IO/X turbo fan ones because they can fog up and fan does clear the moisture out nicely. Great product!
Pros: Works on Smith goggles and sunglasses
Cons: A little hard to snap into goggles
This review was written in the old system and had content requirements that are different than reviews written today.