The original Radar eyewear combined everything we learned from decades of research with the best athletes, and with the taller lens of Radar EV and its extended range of view in the upper peripheral region, the heritage of performance has a new milestone. A stress-resistant frame material that withstands environmental extremes, it is lightweight yet highly durable. Controlled flexibility enhances impact resistance while contributing to the all-day comfort of frames made with this innovative synthetic.A patented innovation that ensures the frame makes contact only at the bridge of the nose and the sides of the head. It holds lenses in precise optical alignment with a secure fit that eliminates the pressure points common with frames that hook the ears. High Definition Optics (HDO) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity, and impact resistance. Lenses with this frame: Prizm Road: Prizm lenses fine-tune vision for specific sports and environments by emphasizing colours where the eye is most sensitive to detail, and improves performance and safety by enhancing vision.