Offering an unrivalled combination of performance and technical brilliance the Oakley Prizm Jawbreaker sunglasses are engineered from lightweight yet highly durable materials that give the glasses the durability and performance required for all types of sporting activity. The Jawbreaker glasses are endowed with Oakley's patented Prizm™ technology that has been engineered over 15 years to enhance contrast and visibility over a wide range of light conditions and offer performance-enhancing clarity in your vision. An extended upper peripheral region is designed to optimise the glasses for sporting activity while Switchlock™ technology allows for easy interchange between lenses and temples that adjust to three different lengths for helmet compatibility ensuring you will be able to adapt to changing light conditions quickly and simply. Iridium® coated lenses are designed to give balanced light transmission reduced glare alongside a stylish sporting look. The lenses also feature High Definition Optics® technology ensuring that the glasses exceed the testing standards of the American National Standards Institute for optical clarity visual fidelity and impact resistance. The sunglasses are complete with inset zones of sure-grip Unobtainium™ which give a comfortably secure fit with greater adhesion with moisture so that you can rest assured your glasses will remain fixed even during the most intense sessions. - L.R. Features: Oakley Jawbreaker Sunglasses Switchlock™ technology allows lenses to be easily changed and allows the glasses to adapt in seconds with HDPolarized™ optics and lenses with Prizm™ technology Curvature of the sunglasses' design offers an extended peripheral region designed to optimise the glasses for sporting activity Iridium coated lenses offer balanced light transmission and reduced glare Prizm™ technology provides unprecedented control of light transmission for maximised contrasting and enhanced visibility High Definition Optics guarantees optical clarity visual fidelity and impact resistance that exceeds the American National Standards Institute's industry-recognised guidelines Inset zones of sure-grip Unobtainium™ give a secure fit even when moist