I've been using these for a month or so for Mountain Biking in sun and mixed trees and shade. I used to have a hard time with the changing light. So much so that I had taken to just using clear lenses so I could see in the trees and squint in the open sun. With these glasses that is a thing of the past. They are so good at changing with the light I don't even notice I'm changing from one to the other anymore. They are under an ounce in weight and have great ventilation for those hot uphill climbs! The tint enhances the contrast so I'm actually seeing the trail better (old eyes). Might seem a bit light if you were in out on the water in bright light but I haven't used them there yet. I see the other review comment about the nose guard. When I first got them I thought the same thing but by rotating the guards out a little it changed the angle of the rubber pieces to a very comfortable fit.

Look good but used Oakleys in preference when recently traversing the Himalayas through all light, snow storm to bright 40 degree daylight. For photochromic shades there are too dark to begin with. The extra neck band is not necessary, too much weight and space.

Seriously, where have these glasses been all my life? I read about the Julbo Trail glasses in Runners Magazine and what stood out about these glasses, as opposed to the others they reviewed, was the photochromic lenses that adapt to different light conditions. These glasses do NOT disappoint in this regard (or any other for that matter)! They are easy on the eyes (no more squinting). In addition, they are exceedingly comfortable. I was surprised to read the review that stated the glasses were not comfortable because, well, I don't have a "conventional" nose (I've been asked more than once if I've ever broken my nose...the answer, by the way, is no...it just came that way) so, more often than not, it is difficult for me to find glasses that fit and are comfortable. These glasses seem to mold to your face (no pinching, no jiggling). They are so lightweight and comfortable that I often forget I'm wearing them. As a result, though I purchased the Julbos for running, I now wear them just about everywhere. My eyes have never had it so good.
Okay, lest you think that the Julbo Trail glasses have given me rose-colored vision, I do have one suggestion for improving them. It seems to me that it wouldn't be too difficult to place some type of absorbent strip across the top of the frame that would catch and absorb perspiration. I find that, during a run, I must take off my glasses and wipe away the perspiration pretty consistently. If they could make this improvement, the Julbo Trail glasses would be PERFECT! As it stands, they're still darn remarkable.

Very nice pair of glasses. The Trail glasses fit a little wide, so i returned them for the Instinct with the same photochromatic lense. The lenses are very nice, excellent for trail running. Definately recommend the Trail model (if you have a larger head).

The glasses fit great and the antifog works but I can't see any change in the lenses.

We sent them back because they simply are not comfortable. The nose brace cuts into the skin too much. The lenses are awesome.