Born from a passion for the outdoors, especially in austere environments, Kryptek Camouflage has proven itself as a staple in the outdoor community. The Oakley SI Flak 2.0 XL Polarized Sunglasses offer a standard size frame with enhanced lens coverage. Every millimeter of the peripheral view is optimized with High Definition Optics in a durable yet lightweight design that takes performance to the next level and brings style along for the ride. Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.FeaturesLightweight O Matter frame material with ellipse metal icon accentsUnobtainium earsocks and nosepads for increased comfort and performance8.75 base lens geometry with HDOProtective soft vault includedBuilt with Oakley HDO technology, photochromic lenses automatically adjust to changing UV lightPolarized lenses