These are my go to Mountain and Fatbike glasses. With the photocromatic lenses these are perfect for when gets dark during our rides especially in winter when its dark at 4pm. These also accept my Rx inserts so great when I don't feel like wearing my contacts. Plus they look sweet mated with my Protera helmet.

I spent a lot of money on the Fotonyk sunglasses and had very high hopes but I am now having to purchase alternative glasses as every time I wear these out biking my eyes are sore for days afterwards. Polarization is needed on these lenses as in bright sunshine they allow too much sunlight and glare into your eyes as well as windflow. I ordered a second lens for these glasses which when I look at the choice of lens available it still allows a lot of light into your eye. The second lens was just as bad as the first.

Awesome sunglasses! Bought a pair to replace my Ekynox SXs that were 14 years old. Liked them so much I bought 2 more pair!