It was a pretty big hassle trying to find the right club masters because the pictures didn't match up with the color options you chose but in the end I was very happy with the result. I got the 51mm because i have a fairly large head and they fit perfectly. I get numerous compliments everyday and they really stick out in a crowd, which is a good thing. As for the build quality, its as sturdy as they come! The glasses feel really good and have a premium, high quality feel. The lenses feel very thick and looks like they can stand a few drops. These glasses feel very good when you wear them, mostly because of the premium build. There is weight to these glasses, because of the high quality materials and build quality, but its virtually unnoticeable when you put these on. Also with the glasses you get a stylish and sturdy case with a leather-like look and feel. These are by far the best glasses i have ever owned and I cannot go back to regular sun glasses after experiencing these.