Tom Ford Blue Block Navigator Opticals combine an aviator silhouette with blue-block lenses for reduced eye strain and a refined, ultra-slim acetate frame. Key attributes: Brown | Havana | Acetate | Blue-block lenses | Full-rim frame | Ready to fit prescription lenses (demo lenses included) | Includes original case and accessories | Aviator/pilot shape | Ultra-slim frame | Shiny acetate finish | Refined metal T detailing | Dimensions & fit: Lens width: 57 mm | Bridge: 13 mm | Temple length: 140 mm | Lens height: 44 mm | Composition & care: Acetate | Wipe clean with a soft cloth. Store in the supplied case. Avoid exposure to heat and harsh chemicals.