The Oakley Flight Jacket Prizm are cycling glasses designed from an aerodynamic point of view and, thanks to its fantastic features, the ultimate in cycling glasses. Where they had already taken an enormous step forward with the Jawbreaker with an enlarged visual field, Oakley has improved this once again with this Flight Jacket. Because these cycling glasses have an 'open' top, an even larger visual field than ever before. This Flight Jacket also has better ventilation thanks to the special Advancer. This is a lever on the nosepiece that you can easily push forward or backwards, releasing new airflows for better cooling. This is very nice when you are climbing, for example. This gives you the advantages of real cycling glasses, but it's not so close to your face that there's sweat on the lens. Also included with these glasses are 2 different lengths of earpieces so that it always stays in place. In short, are you looking for glasses that really stand out from the competition because of their unique characteristics? Then these Oakley Flight jacket Prizm glasses are the cycling glasses for you!