I just have to write about the Serfas Glasses. As most of you know I just had a kinda major crash resulting in a face plant.

The Serfas Kamber glasses took a direct frontal impact with the ground which included about a five foot, facial slide across rocks and gravel. I have broken many a set of sunglasses on much less, but these not only took it, but everything held together 100%. If the lens wasn't so scratched up I could put them on right now.
There is no question in my mind that other glasses costing much, much, more would have separated the lens from the frame at a minimum, if not something worse like a shattered lens resulting in pieces in my eye.
These things are pretty much bomb proof.!! I will never ride with "multi lens" glasses after this because I know that those types would have broken free and I would have been much worse off.
As to them doing the day to day job, they were great. the color and lens setup made them great in all but the darkest lighting conditions. They actually enhance your vision slightly making them better than the standard sun glasses.
and to top it off, they are not one of those overly expensive glasses.
anyway, enough rambling,
I give these glasses a 10-out of 10