Akoni Europa Sunglasses pair navigator-inspired styling with precision titanium construction and photochromic lenses for reliable everyday use. Key attributes: Yellow | D Gold | Titanium | Photochromic lenses | Polarized high-contrast optics | Front and back anti-reflective coating | Custom titanium threaded tube screw hinges | Ceramic nose pads with beta-titanium arms | Includes original case, cleaning cloth, certificate of authenticity and guarantee | Navigator-inspired square frame | Knurled round temple detail | Brushed gold finish | Dimensions & fit: Lens width: 50 mm | Bridge width: 21 mm | Temple length: 142 mm | Composition & care: Titanium frame | Photochromic polarized PU lenses | Ceramic nose pads | Beta-titanium arms | Clean lenses with the included cloth and store in the original case; avoid abrasive cleaners and solvents.