The XL edition offers a standard size frame with enhanced lens coverage, and every millimeter of the peripheral view is optimized with High Definition Opticsin a durable yet lightweight design that takes performance to the next level and brings style along for the ride. Lightweight O Matterframe material with ellipse metal icon accents Unobtainiumearsocks and nosepads for increased comfort and performance 8.75 base lens geometry with HDOAvailable with Prizmlenses to enhance color, contrast and detail for an optimized experience Polarized and Iridiumlens options available Protective soft vault included PRIZMPOLARIZED LENSES Lenses feature the enhanced color and contrast benefits of PrizmLens Technology with the glare-free filtering benefits of Oakley HDPolarized. PRIZM BLACK POLARIZED Light Transmission: 11% Light Conditions: Bright Light Contrast: Increased Base Lens Color: GRAY Information notice : 3