Re: sunglasses what do you
Costa's have some of the most fragile glass I've ever witnessed. I've seen them shatter from being dropped 6" onto a countertop, and from being slightly flexed when a friend went to put the glasses on his head. I've looked through them and they are clear, but the reliability is just unacceptable.
I bought a pair of Oakley Flak Jackets because they are polarized, durable, and Z87 rated. They can be stomped on and then snapped back together, no problem. Try that with Costas....
My wife bought me a pair of Costa's with the new 580 plastic lenses recently because the salesman was a fisherman and told her they were the best. I've worn them a few times, and the lenses are about equal with the Oakleys, possibly just a bit better. However, the Oakleys fit better and are more durable, plus the lenses can be replaced easily when they get scratched up. The Costa's are back ups.