C8 Corvette Onyx Satin Indoor Car Cover : Black The Onyx indoor car cover is the premium cover for the premium sports car. It is made of a polyester blend that includes lycra/spandex, it creates the perfect combination of a satin-like exterior feel with a luxuriously soft underside to pamper your corvette's finish. The front and rear hems, mirror pockets and generation-specific patterns are tailored to your corvette. Its stretchability results in a sleek, form-fitting look that is easy to slip on. Each onyx indoor car cover includes a storage bag. 3 year warranty included! Due to the inner nap of this cover, lint may be transferred to cloth convertible tops when this cover is used.