I have the OutLaw Eyewear Fugitive and it is a really great sunglass. I know someone that got it with their Prescription in it, and they did a really good job with it. They have a professional lab that makes real lenses that go into the frame. It is not an RX insert.
It was not a super speedy process, but the end result is excellent. i recommend it.
Actually, that guy Matt helped me too.