Newman's softly rounded lenses—with a brow line to match—and our signature Graduated Rivets keep things approachable but still plenty scholarly. Made from hand-polished cellulose acetate Akulon-coated screws for durability Prescription lenses are made from polycarbonate, the most impact-resistant material for sunglasses; non-prescription lenses are made from CR-39 for maximum clarity and color Includes scratch-resistant lenses that block 100% of UV rays