Original Oakley Flak Jacket XLJ Replacement Lenses are made from hi-tech Plutonite material for extra ORDINÄRE Optical Performance and excellent splitter and impact protection in accordance with ANSI Z87.1 standard. The glass shape XLJ has distinctive sporty shape lines for minimal cheek contact, balanced aerodynamics and extended side protection against wind, sun and impact. The Plutonite lenses filter out 100% of all UVA, UVB and UVC radiation + harmful blue light up to 400 nm (even with clear or light tint). The most up to date Oakley innovation for revolutionary highlighted with as well as optimal depth and colour perception is Prizm. The unique Prizm Lens for secure fabulous vision clarity and are particularly beneficial when all of a sudden interchangeable light conditions, such as during a Abgeschatteten section during a bike ride in sunny day. Prizm glasses are also available in different designs which are custom made to your sports/Type requirements or light conditions (Prizm daily Polarized, Prizm Golf, Prizm Baseball, Prizm fishing, Prizm Road etc). Some glasses are also polarised for superior glare reduction without optical distortion and interference. Available as an optional extra photochromic glasses with Photochromatischem effect darkening and brightens up automatically reminded that due to lighting intensity. Even in a completely lightened Condition Never faded the lens never fully, an amazing invention that literally finds, but it stays slightly darken. The also optional Iridium lens coating balances the light transmission out as well as reduces glare effects for better visibility and less eye fatigue.