Oakley extended the field of view in the upper peripheral region to optimize it for cycling, and once they added SwitchlockTechnology for easy lens changing plus temples that adjust to three different lengths for helmet compatibility, Jawbreakerbecame the ultimate sport design. Fast, secure lens replacement with Switchlockinterchangeable lens technology Lightweight O Matterframe material with ellipse metal icon accents Unobtainium® earsocks and nosepads for increased comfort and performance Oakley performance shield lens technology with HDO® Available with Prizmlenses to enhance color, contrast and detail for an optimized experience Polarized and Iridium® lens options available Protective soft vault included Fit:  Standard