Save yourself the money of buying from a big store.  These are the model from a few years ago, yet the technology really hasn't changed in sunglasses.

The polarized lenses are well made, have great viewing angles, cut down significantly on glare, and are impact resistant.  These are my favorite lenses to take on Patrol, snowboarding, running, and cycling.  The case isn't as tough as some I have had, but it works, and is still just fine.

I keep buying these because the price is just that good.