I wore costas back before they were cool and before I had any sense of style.
Is everyone wearing them because they are cool? Definately not that styish. You got some throw back Costas without the lenses so you can look stylish when you order beers that nobody has heard of?
I wear my grey lense/blk frame when duck hunting, green 580s inshore, blue 580s offshore Brines. I have some big bulky ones with the side lenses not sure the model I use when sight fishing. Great for application, but damn they make some fricked up tan lines. Look like Jimmy Houston when I get back.