Serengeti Positano 8982 Sunglasses pair lightweight TR-90 nylon frames with photochromic, polarized mineral glass lenses for adaptable, everyday sun protection. Designed with a matte finish and a geometric profile, they balance performance optics with a clean, wearable shape. Key attributes: Black | Negro mate | TR-90 nylon | Photochromic lenses | Polarized lenses | Mineral glass lenses | Spring/flex hinges | Includes protective case and cleaning cloth | Full rim | Square / geometric shape | Matte black finish | Dimensions & fit: Lens width: 56 mm | Bridge: 16 mm | Temple: 135 mm | Medium to medium-plus fit | Composition & care: Frame: TR-90 nylon | Lens: Mineral glass | Wipe lenses with included microfiber cloth; store in protective case when not in use.