Introducing the Oakley Sphaera OO9403 940303 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 a front air vent for improved airflow. Unobtainium® nose pads and sculpted ear socks ensure a secure, non-slip fit even when sweating.