Front Line™ MX is the latest addition to Oakley s High Impact line of goggles. With a Large to medium sized fit, Front Line™ MX is optimized for a wide variety of faces and is engineered to fit perfectly with most helmets. Designed with Oakley s Ridgelock Technology, changing lenses is quick and easy while still allowing for a complete lens seal to prevent harsh conditions from penetrating into your goggle. Discreet frame notches at temples provide compatibility with most prescription eyewear. Features Specific lens technology, maximizes contrast and enhances visibility High impact molded lens for high impact resistance Ridgelock Lens Technologie, rimless look and quick lens changing capability Streamlined frame design provides wide peripheral visibility Chassis comforms to your face comfortably Extended frame outrriggers to fit seamlessly with most MX helmets Removable nose guard for extra coverage from roost 50mm wide strap with silicone beads for secure fit on any helmet PRIZM™ Lenses Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.