These sunglasses strike the perfect balance of performance and style. The full-rim navigator frame is sculpted from lightweight stainless steel and fitted with Carrera's signature Tank hinge, Inspired by the gasoline tank of a caf? racer motorbike. This custom made hinge ensures flexibility and comfort, with a refined design highlighted by Carrera's distinctive touch of red. If you prefer them as optical glasses, you can swap out the UV-protective lenses for a prescription pair.