These glasses are great. Very light and comforatable. The lenses are clear and make seeing in the water very easy. Haven't tested the floatability yet.
When you're out on the water for 10 to 12 hours at a time, you need quality eye protection. These Float frames are amazing. They offer great polarization and they are so lightweight you forget you are even wearing them. They're very stylish and just an overall great set of glasses. I suggest you buy 2 pairs because your girlfriend will probably steal them like mine did.
Lack of weight on your nose and ears
Did I mention they float?