in school I worked in a store that sold all the designers as well as the oakleys, maui jims, ray bans, kaenons, costas, etc etc. The designer shades are crap as far as lenses and durability go. Maui Jims, Kaenons, and the 580 lenses on the Costas are the best glasses as far as lenses, feel, and durability. Like the one guy said the Hingless maui jims are probably the best sunglasses made. I have a few gucci pairs just because when I'm on my bike I like a bigger lense but they either scratch or fall apart within a month or two.