Absolutely love these glasses. I just wore them today. I purchased them from the good reviews. I bought some other glasses from a bike store that were photochromatic. They were ok, but my sweat would drip onto the lens and it was annoying. In addition, the pbotochromatic effect didn't seem to work that well. I bought the jawbreaker with a low light lens and purchased the road prizm separately. I replaced the low light lens with the prizm and it performed flawlessly. My sweat does not drip on the lens...awesome! Also, ibwas able to see the path I take very well. The last part of the first half of my journey is covered in trees and a few underpass. With my photochromatic lenses, everything was still a little dark. With the road prizm, I was able to easily adjust to both light and dark conditions. I absolutely love the glasses for cycling. There peripheral vision is also awesome and if you lift your head just a little tou can see everything on the road in front of you. They are just what I needed. I am not sure if I would wear them off the bike, but i have other glasses for that. I am Totally pleased with my purchase.