The XL edition offers a standard size frame with enhanced lens coverage, and every millimeter of the peripheral view is optimized with High Definition Optics(TM) in a durable yet lightweight design that takes performance to the next level and brings style along for the ride. a Lightweight O Matter(TM) frame material with ellipse metal icon accents a Unobtainium(TM) earsocks and nosepads for increased comfort and performance a 8.75 base lens geometry with HDO(TM) a Available with Prizm(TM) lenses to enhance color, contrast and detail for an optimized experience a Polarized and Iridium(TM) lens options available a Available with Oakley Authentic Prescription Lenses a Protective soft vault included