Oakley Tourniquet Sunglasses combine a wraparound profile with lightweight O Matter construction and Prizm lens technology to enhance contrast and deliver reliable UV protection for daily city and outdoor use. Key attributes: Matte black | O Matter | Prizm lenses enhance contrast and color perception | UV protection | Lightweight and durable frame | Prescription lens compatible | Includes Microclear cleaning bag | Wraparound profile | Square lens shape | Matte finish | Dimensions & fit: Lens width: 57 mm | Bridge width: 17 mm | Temple length: 140 mm | Composition & care: Frame: O Matter | Lens: Prizm lens | Clean lenses with the supplied Microclear cloth/bag. Rinse with fresh water and dry with a soft cloth. Avoid abrasive cleaners and solvents; store in a protective case when not in use.