ROCKBROS Photochromic Sports Sunglasses for Men Women Cycling UV Protection

I bought these as an experiment, and frankly didn't expect to think much of them. I was wrong--they are fantastic. The comfort & fit is excellent, and the high front makes them disappear when I'm on my bike, which is all I use them for. They are very light, and the temples are just the right length to work with my helmet and to keep them perfectly in place. Of course, they look pretty stupid, but I'm not dressing for style on my bike. I had zero confidence in their photochromic abilities, especially after being sorely disappointed by a pair of $220 Julbo Reactiv glasses earlier this year. These Rockbros don't go from clear to dark as they claim, but they do go from near-zero tint to what I'd call a "medium" gray. They are not quite dark enough to ride on a full-sun day in the desert, but in a mixture of clouds and/or trees they are fine. The change is fast enough to be useful, but they don't change quickly enough to adapt to riding into and out of tree shade quickly. However, since they don't really get very dark, they are fine for that. Clarity is excellent, despite the very thin lenses. The included case is nice. Overall I'm extremely pleased with these, and will probably buy another pair for my girlfriend.

[update after ~7 months] I originally rated these 1 star for not being photochromic, and noted that I'd keep them as light grey glasses because they fit (me) so perfectly that they're the only riding glasses I've ever forgotten I'm wearing. Who knows how long I had these on today? I was completely oblivious to them. The lenses are essentially invisible, and the ugly high frames are out of my field of view. (Everyone else can see them, though :)) And I'm not too big to admit that I was wrong and there is actually a mild photochromic effect. But only mild. And only in direct sun. Given that I forget I'm wearing them, maybe that mild effect is just the right amount. Over the months these have been the only glasses I've worn - my other more expensive and better looking pairs are sitting and gathering dust. The other pairs are optically imperfect; too dark; leave a sensation on my nose or temples or ears; leave a gap above the top of the frame; need adjusting; or any of a number of other problems. I've come back to this review because I came back to the item listing to rebuy it in different frame colors, and my name caught my eye. Turns out I won't buy more colors, because the white pair has a chance that light will reflect off the nose bridge, and I don't like blue. When I break or lose my black/red pair, I'll buy another without hesitation. [original review] Light grey indoors. Light day outdoors. Light grey in the sunshine. Light grey if placed in a box overnight and taken out in the morning. Light grey if one side is covered and the other side in direct sunlight for an hour. These are simply light grey plastic glasses. However, the top of the frame is high, making them disappear to me while riding, are comfy (to me), and in 20 years of serious riding are the first glasses that I've forgotten I'm wearing, so I'll keep them as light grey glasses. Be warned that the high frame looks ugly in use.

I didn't expect much from these, but they are absolutely amazing! Love every bit of them, from frameless design to the quality of the lens. I had Oakleys before, but I cannot handle having frames on my sunglasses.(I have never worn glasses for eyesight, so frames are a major annoyance for me) Get them, don't even think twice!

These were the perfect intro pair for me to test and see if photo chromatic lenses work for me. They do! I like almost everything about them. The one little annoyance… sweat, water or any liquid seems to stay in droplets or smears on the lenses. It would be nice if the lenses where hydrophobic. It’s impossible to keep clean lenses while everything is wet from sweat.

Good inexpensive glasses for riding that seem responsive to lighting. I have only used them for a few rides so time will tell if they last. They are comfortable, lightweight, and stay on my face well. No regrets so far.

I thought it was better quality

I use them for trail running with windy conditions and prevent watery eyes, so you can focus on where to step properly downhill. Lightweight, fits well, you can place them over your cap if not need it.

Sunglasses are great for biking! Lens are large enough to block the wind and the photocromic works better than I anticipated! It's not enough to stare at the sun but definitely enough to bike on a sunny day. I commute to work in the morning when it's dark and come home during the afternoon, these sunglasses are perfect!