Serengeti Bormio Sunglasses pair a lightweight nylon frame with photochromic, polarized mineral lenses for clear vision in changing light—ideal for driving and active outdoor use. Key attributes: Black | Eco-Nylon | Photochromic lenses | Polarized | Spectral Control | Anti-reflective coating | Oleophobic/hydrophobic lens treatment | Ultra-light mineral glass lenses | Lens category 2–3 | Wrap-around frame for coverage | Includes protective case and microfiber cloth | Matte finish | Wrap-around silhouette | Rectangle lens shape | Dimensions & fit: 62 x 16 x 130 mm | Medium fit | Composition & care: Frame: Eco-Nylon | Lenses: Mineral glass | Wipe lenses with the included microfiber cloth and lens cleaner. Store in the protective case when not in use. Avoid abrasive cleaners and prolonged exposure to extreme heat.