Our View: The undisputed king of sports sunglasses, the M Frame shield is made from Plutonite. Contoured in three dimensions to match the curvature of the eye to ensure razor-sharp clarity at all angles of view and maximum peripheral vision and protection against sun, wind and side impact. Passes US industrial standards.

The Oakley M Frame offers unbeatable clarity, ANSI (Z87.1) surpassing impact protection and a durable lightweight O Matter frame. Available in five different lens shapes, the M Frame has become vital equipment to a huge proportion of the world's top athletes. Additional lenses are available for purchase as well.