Customize the look of your Flak® Beta eyewear and get the best optical performance for where you use it most. All replacement lenses feature the unbeatable clarity, impact resistance and 100% UV filtering of Oakleys HIGH DEFINITION OPTICS® (HDO®). Important Note: Replacement lenses may not be returned if they have been mounted or scratched. Asian Fit lenses cannot be installed in standard-size eyewear frames.Specifications:- Light Transmission: 11%- Light Conditions: Bright Light- Contrast: NeutralTechnology:PRIZM™ LENSES:- Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.PRIZM™ POLARIZED LENSES:- Prizm™ Polarized features the maximized contrast and enhanced visibility of Prizm™ with the glare filtering benefits of Oakley HDPolarized.HIGH DEFINITION OPTICS® LENSES:- All Oakley lenses offer HDO® Technology with the following benefits- Clarity: Conventional lenses can magnify images. HDO® precision gives less distorted vision across the entire field of view.- Refraction: With regular lenses, objects aren’t really where you see them. HDO® offers a truer visual image so your brain won’t have to work overtime.- UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.