Lenses are good, but you will notice the decreased quality when comparing with the Oakley lenses. These lenses fit within my Gascans, but sit loose. Every time I clean the lenses they pop out, whereas the Oakley lenses stay put. In my opinion, these lenses are great in sunlight, but I believe the Oakley lenses are a little better. I feel like the color of these lenses is slightly darker than the original Oakley lenses, which is a bonus. If you are looking for a lower-priced alternative to the Oakley lenses, then these would do the job,