I like these sun glasses, the iridium lenses are great.  Good contrast ratio.  I always feel as though these lenses will scratch way to easily.  I wish Oakley would put some kind of protective resin over the lenses.  For the price of the sun glasses they should.  One scratch and they can be junk.  Think about what you'll be doing while wearing them.  Don't raise them up and put them on your head.  That's the best way to scratch the lenses.