【Huge Capacity 20 CUBIC FEET】: The Roof Bag Overall Size is 53''x37''x18'' (134cm*95cm*45cm), Carry 20 Cubic Feet Worth of all luggage of a a family of 5-6. Increase Vehicle Load Space without Sacrificing Passenger Comfort, more Capacity, more Enjoyment! 【Water Resistance 1200D PVC】: Features triple-layer high density 1200D PVC fabric. Update watterproof bag protect Your Items from the Sun, Wind and Rain. Reinforced Seams and Sealed Transitions Make Our Luggage Storage Particularly Waterproof and Resistant to the Unpredictable Conditions of the Road. 【Robust & Safe】: This Top Cargo Bag Features 6 Extra Strong Short Tied Rope and 4 Long Tied Rope, Wide Straps to Make Sure Everything Stays in Place, even on Rough and Bumpy Roads. Perfect for Road Trips, Holidays or Equipment Transportation. 【Folding Storage】: Our Roof Rack is the Perfect Way to Maximize Space in Your Vehicle While Packing Everything You Need for the Road Trip and Vacation Outing. Thanks to the Foldable Material, We Pack the Roof Bag in a few Minutes When we end our tour. 【Fit All Cars】Whether your car is with roof rack or not, It can be quickly and easily installed with a roof rack, raised side rails or crossbars. In addition, Recommended Use the equipped anti-slip mat (NOT INCLUDED) can keep the cargo bag stay in place better.