These are my third pair of cheap sport sunglasses from revain in the last year or so. To be fair, these are also the most expensive but I think that the extra five bucks or so is easily worth it. These strike an excellent balance between strength and light weight and overall just have a much higher quality feel to them than the couple of others that I've tried so far. The case that comes with them is also the nicest looking of the bunch, so that's a plus as well. My only complaint with these is that the hinges on them are at least partially supported by a screw. I would much rather have a well-designed snap-together hinge that will pop apart rather than breaking under stress. Other than that, I've found these to work nicely for both biking and running. Would buy again.
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