Introducing the Oakley Sphaera OO9403 940324 Sunglasses. Developed for top performance in any sport, the Sphaera offers a wide field of vision and Prizm™ Lens Technology for detailed clarity. The lightweight O Matter™ frame is designed to be worn over hats and helmets, with front air intake for better airflow. Unobtainium® nose pads and sculpted ear stems ensure a secure, non-slip fit even when sweating.