Oakley radar ev path tdf sunglassesthe radar ev patch sunglasses benefit from four decades of oakley's research and development and reaches a new milestone in their performance heritage. They're equipped with prizm lenses, which increase visibility in varying light conditions so you'll spot dangers well before you reach them. This special edition model also features upper decals in the legendary yellow colour of the tour de france leader's jersey.features prizm lenses extended upper field of vision engineered for maximised airflow for optimal ventilation unobtanium earsocks and nose pads keep glasses in place interchangeable lenses sold separately lens width 138mm bridge width 0mm lens height 50mm temple arm length 128mmin the box oakley radar ev path tdf prizm sunglasses sport soft vault case nose pad microbagtechnologies high definition optics hdo is a collection of patented technologies that allows oakley eyewear to meet or exceed the testing standards of the american national standards institute for optical clarity, visual fidelity, and impact resistance. Hdo provides superior optical clarity and razor sharp vision at every angle. Prizm prizm is a revolution in lens optics built on decades of colour science research. Prizm lenses provide unprecedented control of light transmission resulting in colours precisely tuned to maximise contrast and enhance visibility. Impact protection backed by decades of innovation, oakley performance eyewear offers uncompromising protection against high velocity and high mass impact. The protection is a benefit of the premium materials and unique architectures of oakley lens frame combinations. Buy oakley accessories from chain reaction cycles, the world's largest online bike store.