Since I have a genuine Ray-Ban sunglasses, I have good opportunities for comparison as regards the processing. Visually you can tell right away that it is not simply to cheap Ray-Ban Imitate these glasses. The glass is substantially thicker and more stable than most aviators in this price segment. The frame is even thicker than my original glasses: P!
The glasses have a good fit and sit as custom made on my nose and ears. That they are too narrow or even press, is not true in my case. Only the bars are a little stiff and can not be too easy to open, but this sometimes may also be advantageous.
Finally, I would like to make a clear recommendation to buy Subke pilot glasses. Must for your price of just 6 and you really can not complain. They meet more than just their purpose, make optical head turner and are also still really stable!
PS: Please make but the word "Pornobrille" in your description off, you sell the glasses thus totally under their value, because they are really much more than that: D