One of the lenses popped out after around a week of use. I was able to pop it back in but there's a little bit of a gap. This doesn't inspire much confidence in the quality of the construction.<br /><br />The lenses also tend to get cloudy pretty easily and cleaning them with e.g. my t-shirt doesn't work as well as with other sunglasses. These do come with a lens cloth which I haven't tried so I suppose it's possible it would work better with that. It's inconvenient to have to carry that around though.<br /><br />The nose bridge also rests a little lower on my face than I'd like. If I'm doing something active (e.g. running or biking) while wearing these, they will slide down my face so some of my view isn't covered by the glasses. That's probably my fault for not going out to a store and trying these on for fit though.