Several companies told me they could provide replacement lenses for my Maui Jim's, they couldn't. Jacob at Tajima was extremely knowledgeable and was able to explain which version of the frames could have prescription lenses made and which could not. The website does an excellent job with the lens colors and mirroring, with pictures and descriptions, but I was still unsure which would be best for my needs. Again he was able to help me make the right choice for my specific activities. It's rare to find a company that has such great customer service and product knowledge.