Spy Optic MX Goggle Clear View System (CVS) encompasses a complete set of MX goggle accessories designed to keep your vision clear no matter how bad the race track conditions. Mud, dirt, dust and water don't stand a chance against the integrated technologies of the Spy Optic Roll-Off and Tear-Off systems. The Spy Clear View System combines the convenience of tear-offs with the benefit of a full-bodied roll-off system to offer continued clear vision.