"The clue is in the name 'OAKLEY', this equals quality at the very highest standard. I love my Oakley A Frames so when after 3 years or more trashing my equipment on the slopes of some mountain I needed a replacement lens (the frame and strap are perfect). I opted for exactly the same spec Blue Iridium - they have never let me down in any light condition and they just look awesome. I did want to try the Black iridium but just haven't got the money to buy two pairs - Im hoping Internet Opticians might send me a set because they're awesome too - I telephoned and got some sound advice from a guy who really knew what he was talking about very knowledgable and helpful. Thanks OAKLEY A FRAMES ROCK!!!!"