unrivaled field of view in a large, frameless design. inspired by the helmet visors of fighter pilots, the oakley flight deck l offers a maximum field of view, so you won’t miss a single target of opportunity. the ridgelock interchangeable lens system lets you adapt your lens to whatever the weather decides to bring.prizmâ„¢ snow black iridiumprizmâ„¢ lenses adapt to weather conditions and provide optimal colour representation while maximising depth perception and greatly improving visibility. the lenses are injection moulded under extreme pressure with impact-resistant plutonite® to create a precise contour with optically correct geometry and clarity.