These are the best glasses you can get. I got them in smoke green (there actually black) and they hold up against anything. They're durable and fit nicely. They're also really adjustable.
If your looking for a good pair of sunglasses that can take a hell of a beating than you definately ought to pick up this pair. Ive dropped mine a few times and nothing messes these bad boys up.
These look and seem very nice, very stylish, and very versitle and most of all definately useable.