Dynamix Polarized Replacement Lenses for Oakley M Frame Sweep - Multiple Options Frame is not included frame mirrored lens Polarized Lens width: Fits Oakley M Frame Strong - Meets FDA Drop Ball Test and Z87.1 Test Standards Robust  Thicker than many other flimsy replacement lenses (True impact resistant) Anti-Glare - These lenses are 100% Polarized, which improves contrast & eliminate glare Coated Lenses - Lenses come with dust and water repellant coating, as standard High Levels of Protection - Protects eyes from strong sunlight. (100% UV protection)