Not that long ago, I had to return my favorite pair of sunglasses. They were called the Foley and they were made by Smith Optics.
The lifetime warranty used to be an amazing feature provided by Smith. I'd witnessed a friend call in a claim for a pair crushed by a drift boat trailer. Smith replaced the shades with out a single hesitation.
The lifetime warranty isn't quite that great anymore. After returning my Foleys, Smith notified me that though it was a defect on their side, they would only be able to offer a discounted pair of glasses. I wasn't getting my favorite pair back, and they weren't giving me a new pair for zero. I was going to have to pay towards new shades. I wasn't going to win this battle, so I eventually relented.
I picked out a new pair of Smith shoes. I opted for the Dockside with their new Chroma Pop lens. The lens is touted for amazing clarity and blah blah blah.
What's the verdict? Yeah, they are some clear lenses. The polarization is top notch and the colors I see are great. The price tag is scary. $229 is a lot to spend on some shades that will most likely fall off the boat one day. If you have some regular-ass polarized shades, you'll be ok. If you've got cash to blow, check out some Chroma Pops.