The Jawbreaker is the ultimate sports accessory: 40 years of uncompromising perfection in a design that meets the demands of world-class athletes. Oakley's innovative craftsmanship has ventured into a new dimension of performance. This includes ventilation openings for a cooling airflow, Unobtainium components for a comfortably secure fit, and the hassle-free Switchlock lens change technology for optimal adaptation to all visibility conditions. Accessories: glasses case. Purpose: sports. Details: Expanded field of view in the upper peripheral area for optimal visibility, especially in cycling. Ear stems and nose pads made of Unobtainium for a secure fit of the lenses, which even strengthens with sweat. Lens change system for seconds-fast lens replacement to optimally adjust visibility to any sports environment.