I've use Oakley X-Metal Juliets with standard black lenses.
They look great and came first in a major survey of US pilots last year. However, I've managed to scratch the lenses and can't get replacements here. They do say that the lenses are tough etc. but I'm not so sure now! Luckily, I'm off to the US this month so I can get some replacments.
Also, as IO says, the thicker frames cause a gap between headset and side of the ear, which is noticeable at times in terms of cabin noise. The frames are metal and comparibly heavy, but are reasonably comfortable.
Blue