These lenses are great for sports or driving. They provide high contrast on the tennis courts, on the golf course or fishing. Polarized, they really cut the glare. I don't see the Swiftkick frames now on Optics Planet - I hope they are not being discontinued.
Pros: High contrast. Not too dark. Poarized.
This review was written in the old system and had content requirements that are different than reviews written today.