For over two months now have the glasses in use and can not say anything bad about it. I just opted for these glasses because it has a wide nose bridge, as I have a slightly wider nose and with me not so easily fit glasses. I use them exclusively in the profession (Roofing) She sits wirlich comfortable for extended wearing. I would only recommend people these glasses with narrow to medium faces. The disk change I have not tried it yet. From me clear Kaufempflehlung
