Oakley Flak 2.0 S is a performance sunglasses model built for sport and everyday wear. The S edition delivers the same lens coverage in a smaller frame designed for a secure, active fit. Key attributes: Matte black | O Matter | High Definition Optics (HDO) | Impact protection | UV protection | Prizm lens option available to enhance color and contrast | Unobtainium nosepads and earsocks for secure, no‑slip fit | Prescription-ready frame | Lightweight O Matter frame for all-day comfort | Wraparound sport silhouette | Pillow-shaped lenses | S edition scaled-down frame | Dimensions & fit: Eye: 59 mm | Bridge: 16 mm | Temple: 123 mm | Lens height: 37 mm | Narrow fit | S edition: scaled for smaller faces | High bridge fit | Composition & care: Frame: O Matter | Lenses: Plutonite (polycarbonate) | Nosepads/earsocks: Unobtainium | Wipe lenses with the included Microclear microfiber; hand wash the microfiber bag and air-dry. Store glasses in the protective case and avoid abrasive cleaners or solvents.