Tifosi Aethon glasses offer full coverage & protection. At first glance, they appeared to be too much. They seemed a bit bulky to fit well with my helmet. Not so. They are lightweight with good grip and stay in place in wind and bumpy downhill rides. The option to remove the brow bar is great and may come in handy some time, but I have found them to be perfectly comfortable and fit well with my helmet. The brow bar has some small vents. The lens replacement system took a bit of getting used to but once you get it, it’s not a big deal. Just be sure to keep your lens wipes close as it requires a bit of fingerprinting to get the job done. I really enjoyed using them while cycling.
Of course the Aethon glasses are recomended by RUNNER’s WORLD. It is great to find an optic that can be used for different disciplines.
Overall I really like the Tifosi Aethons and will also use them for touring in the winter. I think they will be a great option when the cold winds kick up at the top of the mountian.
Tifosi Aethons come in an awesome protective case with a lens wipe, and 3 different tint options. There is a nice soft envelop to store the extra lenses. There is a silicon adjustable nose piece and side arms for the frames.

The TIFOSI brand creates great value. High quality optics that come in at a very competitive price.