Skip I have two pair of the Costa Del Mar glasses one pair I bought 6 years ago and the nose piece finally wore out I just sent them back and they replaced it and they look like new. I just bought a pair of the Permit style glasses for fishing this spring and I got them with the glass lense. It is incrediable the difference it makes as far as the clarity and the way they cut glare. I also bought a pair of the Fishgillz glasses this spring and needless to say they just don't compare to the costas IMHO.
Slabologist
"Professor of Slabology 101"
Keep your line tight !