I bought these as a cheap alternative to Holbrooks. Came in a good case, pouch and microfiber cloth. They worked well for about 4 months until the tint came off and affected your vision. There are stains on the lenses, so they need to be cleaned from time to time. It's hard to tell from the photo I've attached, but it seems to be a common problem with cheap sunglasses like this one. I had the same problem with interchangeable lenses for my Holbrooks. Although Holbrooks are expensive, they lasted me 4-5 years before the lenses started scratching (the tint never faded) and one of the levers broke. I even glued it back on for a while and it worked fine. I finally gave up and bought them but I think I'll come back to the quality.
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