Rad8 507 - Photochromic

I've been mountain biking since 1992 and have worked my way through countless different sunglasses and "semi"-goggles, including a pair of Rad8 505 (which are now my spare). The 507 is, hands-down, the best I've ever had since the start. Comfortable, never fog, and the photochromic changes without you even noticing (and quickly). I NEVER ride without glasses and I forget I'm wearing these within seconds of putting them on. They are damn near perfect.
Now... I'm a bit older... If only the 507 could have prescription lenses!

Second pair, left my first pair by side of trail!!!good glasses & price was right, would buy again, hopefully keep hold of this pair though

I really like the design of these glasses. They are very light and provide good coverage. Some minor negatives: the temples are too big to get the glasses to sit on your helmet when not in use, and I had hoped the lenses would go a bit darker. I will be using my other glasses when cycling in sunny conditions but these are good for less bright conditions.

I've been riding in Rad8's for a few years now and their riding glasses never disappoint. The new 507's are styled more like goggles and offer much more protection from mud splash while offering a large field of view. The vents add that little extra help to keep them fog-free. The quality of the optics is excellent and the transition from riding in the shade to bright sunlight is quick and smooth. In the shade they are clear and in sunlight, they are just at the right level to take the sting out of the brightness.

3 rides in on hot days, no fogging up and I'm a sweaty guy, nice clear lenses, comfortable and for both my road and MTB helmets. Recommended