EUC SERENITY sunglasses with interchangeable lenses. #serengeti #interchangeable These VINTAGE Serengeti sunglasses feature gold-toned oval frames and brown lenses, paired with a matching branded case.The frame design suggests a 1990s style, often categorized as designer or collector eyewear.Serengeti lenses are known for photochromic technology, which adapts to changing light conditions.