Features Technologies Flak 2.0 S Product overview More features The S edition offers a smaller size frame with enhanced lens coverage, and 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. FRAME LENSES Size: XXS (120mm) Sold in one unique size Lens Height 36.9 mm Frame Width 120 mm Arm Length 123 mm Lens Width 59 mm Bridge Width 16 mm ? DESIGN - Frame suitable for smaller faces. Same lens proportions as the original Flak 2.0, available in a smaller size ? FRAME MATERIAL: Durability and all-day comfort of lightweight O Matter? frame material ? NO-SLIP GRIP: Unobtainium nosepads and earsocks become tackier when wet to help provide retention ? SEE MORE DETAILS - Prizm? Lens Technology engineered to enhance color and contrast to see more detail ? OAKLEY PRESCRIPTION LENSES: Available with Oakley Authentic Prescription Lenses for consistent high quality in fit, form and function from lens to frame TECHNOLOGIES INCLUDED 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. Prizm? Oakley?s exclusive lens technology designed to enhance color and contrast so you can see more detail.