your winterbuddy for sunny days. inspired by the helmet visors of jet pilots, the oakley flight deck has an unrivalled field of view with a wide range of helmet compatibility. let's heat up the slopes - you're set to fly fo' sho'!prizm sapphire iridiumprizmâ„¢ lenses have been engineered to reduce the need switching lenses as lighting conditions change. prizmâ„¢ lenses provide unprecedented control of light transmission resulting in colours precisely tuned to maximize contrast and enhance visibility. the premium iridium lens coating is made with superheated metal oxides, also designed to balance light transmission and reduce glare. engineered for bright sun, sapphire iridium® reduces glare and balances light transmission to help you maintain colour recognition.light transmission 20 %