OAKLEY REPLACEMENT LENSES: Customize the look of your Leffingwell eyewear and get the best optical performance for where you use it most. These Leffingwell lenses are official Oakley replacement lenses that fit all Leffingwell sunglasses. PATENTED HIGH DEFINITION OPTICS (HDO): All replacement lenses feature Oakley's high definition optics (HDO) which provides superior optical clarity and razor-sharp vision at every angle as well as clarity and protection against impact and UV light, filtering 100% of UVA, UVB, UVC, and harmful blue light up to 400mm. OAKLEY PRIZM TUNGSTEN LENSES: Prizm lenses are designed to enhance color, contrast and detail. The brown tint on these lenses make it perfect for everyday use or while driving in medium to bright light. VISIT THE OAKLEY BRAND SHOP: Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment.