A convertible, also known as a cabriolet and spyder/spider, is an automobile that can be driven without its roof in place, allowing for open-air driving with the option to re-attach the roof. Early convertibles did not have sides or roofs, exposing them to the outside elements. In the late 1800s, folding leather or textile roofs were implemented into the convertible’s design. Most automakers have produced a version of the convertible. Convertibles sometimes have additional features like a Tonneau cover to protect the roof when it is withdrawn, a wind deflector to reduce noise, a heating duct directed at the neck of passengers, and a rear window. Roof designs of a convertible include a textile soft-top, a detachable hardtop, and a retractable hardtop.