In Detail:
About 2 years ago I bought three models of drift, in black, light-brown and orange. My clear favorite: light-brown. A good sunscreen without too much light to filter provides both sunshine and rain and winter, or to affect too much the colors (like orange). Orange ranks with me in second place - well in fog and bad weather. Black on rank 3, as it absorbs too much light and therefore details.
The Pros: The glasses are ultra-light, disturbing at any time, sitting very firmly but without even the slightest push. It provides draft-free driving with the wheel and inclined slightly to start up when you sweat heavily. So an ever-top glasses that I wear at any cycling - on the daily 12km commute to work - or my annual mountain trip in the Alps. I have always been very satisfied with it. But due to lack of spare glass and light offer constructive defects (see below.) Inadvisable - principle also provides the possibility of an exchange of glass.
The cons: The shelf life. Already on the second day broke on my first glasses the glass at the nose piece - repaired with superglue. The glass on the second spectacle tore short time later. After a year of regular use of the frame of the first glasses broke in the middle (not repairable) in half, a short time later the bow of another spectacle. The third party has improper moving is not survived intact. The lenses shown in the meantime already some scratches. The scratch resistance but I would still describe as well.
Bottom line: If you can live with a limited shelf life, an excellent and very functional glasses. You have to deal with it just very carefully. Bending should be never possible.
