Bobster Photochromic Fat Boy Sunglasses

Comments about Bobster Photochromic Fat Boy Sunglasses:

These are pretty decent photochromic sunglasses if you understand how they work.
Photochromic stuff gets activated by UV, so if you wear them under a UV-blocking face shield or in a car, they won't darken. Darkening will also be prevented by high temperatures (think high eighties and above), but it will be triggered by low temperatures so riding in the winter at night may be a problem. It takes about 10 minutes for the lenses to fully darken and then it takes about 5 for them to clear up.
Having said that, the glasses work. They are reasonably clear when not activated and according to my light meter they get about 8 times darker when activated. Which is not as much as people think - only 3 exposure stops, but the 3 stops are there and it helps a lot.
My commute is 50 miles one way and the glasses help tremendously when I ride home and catch the sunset along the way.
The lenses have a slight yellowish tint when they are clear and they get grayish when activated.

The overall construction is minimalistic - there is no spring acrion in the temple hinges and the temples are quite thick so they may not fit comfortably under all helmets. For me they feel good under an Icon Airframe, but my Arai RX7 pushes a bit hard on the ears pushing the glasses up from my nose. Your results may vary, of course.

Comments about Bobster Photochromic Fat Boy Sunglasses:

I wear these under my Arai XD3 while on long trips. I like the way they get darker in direct sunlight, but do wish they would go a little darker. In their defense it seems to be that way on all the light sensing goggles and sun glasses I have ever used. I carry a set of very dark sunglasses that I wear durig the height of the day or if riding directly into the sun for a prolonged period, but these are great for all day riding and dusk/dawn. They are very comfy and I can ride at 70-80 mph with the shield on my helmet up without my eyes tearing up. I only tear up when I have to head for home.

Comments about Bobster Photochromic Fat Boy Sunglasses:

They did fog on me at night not too badly though. Didn't seem to get dark enough to ride towards the sun. They will do the trick and don't let alot of air at your eyes.

Comments about Bobster Photochromic Fat Boy Sunglasses:

Gave it a four star because I have nothing to compare them to, but overall great glasses, great any time of day