No other sport sunglasses on Earth rival the performance of Oakley’s M FRAME. That’s why so many world-class athletes have depended on it for over a decade. The M FRAME gives them the unbeatable clarity of HIGH DEFINITION OPTICS® (HDO®) in a lightweight design of durable O MATTER® frame material. Patented technologies maintain razor-sharp clarity at all angles of vision, and impact protection meets all ANSI standards.Interchangeable lenses help you adapt to any environment, and this vented version is engineered to provide cooling airflow. We developed the G30™ lens for some of the world’s best golfers, and you can take advantage of the enhanced depth perception of its increased contrast in any medium-bright environment.