Anti Slip Mat: Please place the anti-slip mat before fix the car roof bag. It not only increase friction between the carrier bag and car roof, but also prevent the car roof from scratches. It can effectively absorb shock and maintain stability when driving on rough mountain roads and continuous sharp bends. Reliable enough to company with you to go on any adventure or trips.

Create More Storage Space: This car roof bag allows to put 4 medium suitcases(24 large), 4 sleeping bags, and 2 tents inside. The whole capacity is 20 cubic feet. Very suitable for long trip and cross-state travel. The installation is very simple and convenient, no extra tools needed. Fold the empty car roof bag and put it into the storage bag, then place it into your car without taking too much place.

Keep The Contents Clean：Made of 900D PVC tarpaulin, thick and more durable more than normal composite rubber fabric. The interior of the roof bag is made of a whole piece of fabric without any splicing, which is not easy to tear and break.Works well for against wind, snow, dust and grit. 100% Waterproof performance is the core reason you choose us.

Double Security Design: When you pack all the luggage into the car roof bag, just slide the two zippers together. Then pull down the rain curtain and stick the total 8 suction stickers. Any small exterior particles is almost impossible to get into it. At last, adjust the length of straps according to your needs.

Easy to Install: Suitable for most cars, such as trucks, suvs, sedans and wagons. You can fix the straps on the car top racks directly and adjust the length and tightness. For cars without top racks, you can buckle the door hooks into the car door frame easily. No need for screws, magnets, tape.