Built for performance, these irregular sunglasses from Oakley may look stripped down and simplistic but they in fact harbour a wealth of technical features. Their interchangeable lens has been tested to stand up to high velocity impact as well as being moulded into a single contour to increase your peripheral vision. With three extra grip points on the earsocks and nosebombs, these glasses are created to protect you against the sun and wind even during strenuous and turbulent activity.Oakley M2 sunglassesM FrameTM, interchangeable lens design, Unobtainium® earsocks, High Definition Optics®, lens meets all ANSI Z87.1 standards, stress resistant O Matter® frame, Oakley Polaric EllipsoidTM geometry, Plutonite® lens filters all UV