🚙 3 INSTALLATION METHODS - This is the only dual-purpose cargo carrier bag on the market for rooftop and truck pickup bed. It can be used with all sized Cars/SUVs/Vans and Pickup Trucks whether your vehicle has a rack installed or not. 10 Holding Straps used for cars with racks, 4+2 free Door Hooks used for cars without racks & 4+2 free Truck Bungee Hook used for pickup trucks. 🚙 SUPER WATERPROOF and TEARPROOF MATERIAL- Our rooftop bag made of 600D oxford fabric, excellent Tear/Heat/Cold Resistant. And the inner layer with a PVC coating and PU waterproof glue to prevent water from seeping into the roof luggage bag effectively. 🚙 ULTRA-LARGE CAPACITY - The dimensions is L47" x W 35" x H 20" offer 19 cubic feet of roof storage space, allowing you to pack everything you want on your next trip.No more worrying about your car space! Our roof bag is foldable and it is easy to storage in the Free storage bag when not in use. 🚙 EASY TO USE - It comes with detailed instructions for various vehicles such as cars with or without roof rack and how to install on trucks, quickly and easily installed in minutes. Soft sided design allows it comfortably holds odd-shaped and over-sized objects. 10 elastic Velcro strap restrainers to prevent strap flapping and reducing road noise. 🚙 FREE PROTECTIVE MAT and BONUS LOCK - A MUST FOR YOUR CAR. Perfect design for happier camping, travel, move. Using a Protective Mat helps cushion and quiet the contact between the waterproof cargo bag and the roof,prevent luggage from sliding, and protect your car roof paint. The combination lock prevents the zippers from slipping open and make sure your luggage more secure.