Walleva Replacement Lenses for Oakley Flak 2.0 XL Sunglasses - 26 Options Available Fit For Oakley Flak 2.0 XL (OO9188 Series, Not including Asian Fit Version) 100% Polarized (For Polarized Lenses Only, Reduces Glare and Enhances Contrast), 100% UV Protection (Exceeds ANSI Z80.3 and EN 1836:2005 Standards) 16% Light Transmission, 12%-40% (For Photochromic Lenses), 99% (For Clear Lenses), 75% (For Yellow Lenses),36%(For Pink Lenses) Impact Resistant - Passed FDA Drop Ball Test and Z87.1 Test (For Mr. Shield Polarized Lenses and Non-Polarized Lenses), Walleva Repel Coating (Repels Dust and Water) Mr.ShieldLenses:Sea/Pool/SoapWaterResistance,TaperCorrected,PCPolarized,ISARC:InnerSideAnti-ReflectionCoating,innersideiscoatedbyablueanti-reflectionlayer,whichcaneliminateinnersideflare