Refresh, Have had these lenses for about 2 months and use them for cycling and such. The coating on the outside started to wear off and the lenses became less transparent. I don't know what's causing this, but it's supposed to have some kind of coating on it to protect it from dirt, oil, water and sweat. I've only used a microfiber cloth or Oakley lens cleaning cloth and the lenses can be used but not for anything special. For this reason I have changed my rating from 5 to 2 stars. These lenses fit my frame perfectly and are very clear on first use. It's a shame they only lasted a few months. They fit like a glove and are very crisp. They're a great lens replacement for a ton less than the originals. I've bought a variety of replacement lenses over the years and these remain my favorites to this day.
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