Oakley M Frame Strike Sunglasses combine a wraparound shield design with high-impact optics for wide-field clarity and reliable protection in bright conditions. Key attributes: Black | Nero | O Matter | High-impact Plutonite lens (meets ANSI Z87.1) | 100% UV protection up to 400 nm | High Definition Optics (HDO) for reduced distortion | Grey lens: 17% light transmission — suited for bright light | Three-point fit | Patented Unobtainium earlocks for a secure grip | Hammerfang earstems for comfort | Replacement lenses available | Shield / wraparound lens silhouette | Wide field of vision | Ultra-light, stress-resistant frame | Dimensions & fit: Size: L (134mm) | Three-point fit for a secure, stable wear | Large size (L) | Composition & care: Frame: O Matter | Lens: Plutonite | Earlocks / nosepieces: Unobtainium | Clean lenses with the supplied Microclear bag or a soft, lint-free cloth. Avoid solvents and abrasive cleaners. Store in a protective case. Hand-wash the Microclear bag and air-dry.