【1200D PVC Waterproof Material】Made of premium 1200D PVC waterproof fabric, this car top bag rolls various excellent performances into one, which resists tears, abrasion, stains and extreme heat & cold. Advanced heavy duty PVC material makes it 2-3 times more durable than other traditional ones. 【Large Capacity & Can be folded】With 11 cubic feet, this car roof bag is definitely roomy enough to hold all you need on your trip or adventure and keep them dry. It also can be folded to a compact bag(around 10L bag) & put in backpack or travel bag for easy storage when not in use. 【Fits for Vehicles With/Without Racks】Size: 41×30×15 inch. This multifunctional roof luggage carrier with specially designed size to fit most vehicles perfectly like SUVs, sedans, crossovers, compact cars, etc. Great for travel & daily use for storing or removing equipment and gears. 【Secure Fixing Accessories】Bonus detachable straps fix the roof top bag securely at any highway speed. And free-offered anti-slippery mat which measures 45x33inch, provides extra steadiness & protects the roof from scratches. 【Easy Installation】This rooftop cargo bag can be quickly and easily installed on any vehicles in minutes whether the vehicle has a rack installed or not. Take it to start your trip right away!