1Durable Oxford Fabric: The rooftop cargo carrier bag is made of Oxford fabric that will not peel or tear, and is resistant to cold, heat, and ultraviolet rays. It is durable and waterproof, and can withstand extreme weather conditions such as rain, snow, wind, and sun. This can ensure that your items remain safe and dry, even during the toughest road trips. 2Wide Applications and Anti Slip Mat: Waterproof car roof bag is suitable for most sizes of cars, small, medium, or large cars, with or without sunroof cars. Bring an anti slip mat for shipment, the mat may have a slight odor, which may dissipate depending on the situation. 3Universal Design: Our car roof bag is compatible with most vehicles, including sedans, SUVs, and small trucks. No matter what type of car you own, as long as it has a roof or roof rack, you can use our car roof bag to make your travel more convenient and comfortable. 4Large Capacity: 44x34x17in size car roof bag. 425L provides ample space for all your essentials. Whether you are packing camping equipment, sports equipment, or family vacation luggage, our car roof bag can meet your needs. 5The Safest Design: Your item is safe at any highway speed, and the waterproof car rooftop cargo carrier bag has the strongest nylon strap.