The Serengeti Marco Sunglasses combine a classic navigator silhouette with advanced 3-in-1 lens technology. Built for driving and all-day wear, they pair ultra-light mineral photochromic polarized lenses with a polished bio-acetate frame. Key attributes: Shiny Crystal Dark Green | Transparent | Bio-acetate | Ultra-light mineral lens | Photochromic | Polarized | Spectral control | Prescription compatible | Includes case and cleaning cloth | Drivers gradient lens | Navigator (pilot) shape | Subtle metal details | Shiny crystal frame finish | Dimensions & fit: Lens width: 57 mm | Bridge: 18 mm | Temple: 145 mm | Large fit | Composition & care: Frame: Bio-acetate | Lens: Ultra-light mineral | Wipe lenses with a microfiber cloth and store in the provided case.