We extended the field of view in the upper peripheral region to optimize it for cycling, and once we added Switchlock™ Technology for easy lens changing plus temples that adjust to three different lengths for helmet compatibility, the Oakley Jawbreaker Sunglasses became the ultimate sport design.Oakley Jawbreaker Sunglasses Highlights-• Fast, secure lens replacement with Switchlock™ interchangeable lens technology• Lightweight O Matter™ frame material with ellipse metal icon accents• Unobtainium® earsocks and nosepads for increased comfort and performance• Oakley performance shield lens technology with HDO®• Available with Prizm™ lenses to enhance color, contrast and detail for an optimized experience• Polarized and Iridium® lens options available• Available with Oakley Authentic Prescription Lenses• Protective soft vault included More info