Car Covers. A good car cover protects the interior and exterior of your Jaguar and can add years to the life of your paint and leather. There is no one perfect car cover material, as costs and performance vary widely. We list four cover materials: Poly Cotton is an old standby. It's very reasonably priced and offers basic indoor protection. Tan Flannel is more expensive but has a soft inner layer that's very kind to paint and offers a modicum of ding protection. It's also best as an indoor material and is a bit bulkier than poly cotton. Technalon is among the new-generation of outdoor-suitable fabrics. It's more expensive and bulky, but offers excellent protection against rain and UV damage. WeatherShield HP is new to our range. It's pricey, but offers even better all-weather protection than Technalon. What's more, WeatherShield HP requires very little storage space and does not require a commercial washer when dirty.