When you traveling with luggage to the camping site or move equipment around, you would realize that your vehicle needs more cargo space. great for camping, sporting events or family travel where more storage space is needed. It will provide additional space to your vehicle which has roof rack side rails, crossbars or cargo baskets or even without racks.the cargo bag is waterproof so you don't need to worried about it even if it rains outside.Specification:Color:BlackMaterial: 210D Oxford Cloth(Waterproof)Size:about 96cm/37.80"x96cm/37.80"x46cm/18.11"[Conversion: 1cm=0.3937 inch, 1inch=2.54 cm]Features:Frame-less construction and thus can easily fold up when not in use.Double stitched seams design keeps luggage safe, dry and secure.With 8 strong quick release straps for easy fitting.Two-way high strength seal zipper making the loading of goods much convenient.Waterproof sealing design,all bag are Welded seams with Penetration resistant coating.Flap that covers the zipper help to against the strong wind,heavy rain or snow during driving.Eight fixed bandage to ensure the safety of the box and the internal items.Works on all car with or without racks.Package Included:1 x Rooftop Cargo bagNote:-Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully.-Please allow 1-3CM differs due to manual measurement.-Due to the different display and different light, the picture may not reflect the actual color of t