The Oakley M2 Frame XL sunglasses provide you with all day comfort while maintaining durability with its lightweight, stress resistant O MATTER® frame material. High Definition Optics® provide optical clarity, visual fidelity, and impact resistance. The M2 Frame XL Plutonite® lenses are also 100% UVA/UVB/UVC resistant and block harmful blue light up to 400nm. These sunglasses also offer an interchangeable lens system that allows you to change lenses in seconds and the Unobtainium® earsocks and nosepad increase grip with perspiration for a no slip grip without compromising on style. Additionally, the XL version offers enhanced lens coverage and specialized lens curvature for protection against sun, wind and impact.