Covercraft Custom Fit Car Cover for Mercedes-Benz S Class (WeatherShield HP Fabric, Black) Special additives to the encapsulation formula reduce fabric UV degradation Silicone polymers used in the encapsulation formula help create a silky smooth finish that's even less abrasive than flannel Allows any heat moisture or condensation under the cover to easily escape Has bottom-edge elastic to hold the cover tight and is equipped with grommets for a cable lock and an additional grommet that can be installed to accommodate your vehicles antenna Custom-made to hug every contour of your specific vehicle and most of these made-to-measure covers have sewn-in mirror pockets