CoverMaster Gold Shield Car Cover for BMW X3 Sport Utility - 5 Layer 100% Waterproof Composed of three (3) layers of Polypropylene PLUS which offers the best water protection, making the cover 100% waterproof. One (1) layer of Micro-Porous film that allows the car to breathe and prevent oxidation and water build up One (1) layer of super soft cotton fleece coating which touches the car and protects the finish and the paint Extreme weather protection guaranteed: snow, ice, rain, hail, wind, and strong UV rays. Perfect for protecting your car against pets such as cats, dogs, or even bird droppings and Resists rot & mildew and will not stretch or shrink and also reduces heat based damage FREE Lock and Cable! FREE Antenna Patch! FREE Storage Bag! LIFETIME warranty