Customize the look of your Oakley 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®).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.