Oakley Holbrook Sunglasses combine a classic square silhouette with Oakley performance technologies for everyday sun protection and enhanced visual clarity. Key attributes: Gray | O Matter | High Definition Optics (HDO) | Prizm lens contrast enhancement | 100% UVA/UVB protection | Impact resistant lenses | Unobtainium nose pads and ear socks | Three-Point Fit for optical alignment | Prescription lens compatible | Includes microfiber cleaning bag | Square frame | Metal rivet accents | 6-base lens geometry | Dimensions & fit: Lens width 57 mm | Bridge 18 mm | Temple 137 mm | Regular fit | High bridge fit | Composition & care: O Matter (frame) | Plutonite polycarbonate (lenses) | Unobtainium (nose pads and ear socks) | Metal (rivet accents) | Clean lenses with a microfiber cloth and lens cleaner. Store in protective case. Avoid abrasive cleaners and high heat.