Oakley evzero path prizm road sunglassesbuilt for speed and engineered to be the ultimate multi sport sunglass for training, running and beyond, evzero path is oakley's lightest performance frame and features a toric shield of plutonite in a rimless design for an unobstructed view.this model features their revolutionary prizm lens technology built for road riding. Features prizm is a revolutionary lens technology that fine tunes vision for specific sports and environments three point fit holds lenses in precise optical alignment while eliminating pressure points unobtainium earsocks and nosepads increase grip with perspiration for a no slip grip plutonite lenses offer top uv protection filtering 100% of all uva, uvb, uvc and harmful blue light up to 400nm o matter stress resistant frame material is both lightweight and durable for all day comfort and protectiontechnologies high definition optics 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. 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 that are precisely tuned to maximise contrast and enhance visibility.buy oakley accessories from chain reaction cycles, the world's largest online bike store.