Boss 1831/S Aviator Sunglasses combine a classic pilot silhouette with polarized grey-shaded lenses to reduce glare and deliver comfortable, everyday wear. Key attributes: Black | Grey shaded polarized | Acetate | Polarized lenses | Spring hinges / ultra-flexible hinges | Lightweight construction | Includes protective case and cleaning cloth | Aviator/pilot shape | Double bridge | Saddle bridge | Straight temples | Engraved logo at temple | Dimensions & fit: Lens width: 58 mm | Bridge: 16 mm | Temple length: 145 mm | Composition & care: Acetate frame | Polarised lenses | Wipe lenses with a microfiber cloth and store in the protective case when not in use.