Switchlock Technology: For a quick lens change, Flight Deck Pro features two outrigger mechanical locks that give you the confidence of lens security. Unlike other Switchlock models, no magnets are used to increase field of view. You won’t believe what you have been missing.​ Replacement lens for the Flight Deck L Pro snow goggle only. Whether you want to be able to change your lens color for your activity or environment or replace existing lenses, Oakley authentic lenses are the only replacement lenses manufactured to meet Oakley’s quality and optical clarity standards. Oakley lenses and frames are designed to work together seamlessly to deliver optimal fit and comfort, impact protection, and HDO optics. Lens Lamination: Anti-fog treatment is fused directly to the outer lens to reduce distortion and enhance clarity in all conditions. Prizm replacement lenses are designed to enhance color, contrast and clarity. Prizm lens technology is proprietary to Oakley and engineered to maximize your vision in a full range of sport and everyday environments to help you make the most of any activity. Whether you want to be able to change your lens color for your activity or environment or replace existing lenses, Oakley authentic lenses are the only replacement lenses manufactured to meet Oakley’s quality and optical clarity standards. Oakley lenses and frames are designed to work together seamlessly to deliver optimal fit and comfort, impact protection, and HDO optics.