The XXL edition offers an Extra Large 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. Fit & Design: Frame suitable for extra large faces. Same lens proportions as the original Flak 2.0, available in a larger size Durability and all-day comfort of lightweight O Matter(TM) frame material Unobtainium nosepads and earsocks become tackier when wet to help provide retention Technology: Prizm(TM) Lens Technology engineered to enhance color and contrast to see more detail Impact protection: 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 Additional Details: