I lost a pair of Oakley's a few years ago, because of the nature of my job.  So, I began looking for less expensive sunglasses that did the same job, but didn't make me rage if they got lost or broken.  I ordered a few different brands, and this one was completely shocking to me.

The lenses are polarized and they are lightweight.  They are tinted just enough they block out the annoying glares and not so much you have to take them off when it's not extremely bright.  This was about a year ago.  They have become scratched because of the constant use, so I  bought two more pairs when they became available.

HIGHLY recommended glasses.