Style and performance in a lightweight design makes the Oakley Flak 2.0 XL Prizm Sunglass a timeless piece. The XL edition offers enhanced lens coverage and specialized lens curvature for protection against sun, wind and impact. This makes the Flak 2.0 XL perfect for playing sports or training for marathons. The HD Polarized technology will keep the suns nasty glare to a minimum and the Plutonite lens will filter out all of the UVA/UVB and UVC and harmful blue light. PRIZM lens technology is included and fine tunes your vision for sports and other environments. The O Matter frame material is a tried and true Oakley feature that has proven to give you comfort all day and durability so you can wear these shades year after year. Unobtainium Earsocks and nosepads keep glasses in place, increasing grip despite perspiration. When it comes to expecting the very best in design and function, the Oakley Flak 2.0 XL Prizm Polarized Sunglasses has everything you need. PRIZM Lens Technology, Enhanced Lens Coverage, Three Point Fit System, Unobtainium Earsocks and Nosepads, High Definition Optics, Best Use: Multisport, Lens Material: Plutonite, Frame Material: O Matter, Polarized: Yes, Photochromatic: No, Interchangable Lens: No, Additional Lenses: No, Face Size: Large, Nose Pads: Yes, Warranty: 2 Year Limited, Lens Type: Polarized, Model Year: 2018, Product ID: 437952, Frame Shape: Rectangle / Square / Wrap, Model Number: OO9188-60, GTIN: 0888392228192