RoofPax Expandable 15 to 19 cubic feet Rooftop Cargo Carrier Bag is the Largest & Safest Cargo Carrier Bag You’ll Find! What makes our Expandable Car Rooftop Bag better than competing brands? This is the only car top bag that uses safety door hooks, instead of dangerous and potentially illegal straps that go inside the car, which other brands use. Offering 15 or 19 cubic feet of storage space makes our storage bag larger than competing brands, so you are not limited on what you can pack. A built-in protective 8 mm PP foam mat is included with your purchase. With other brands, you need to purchase the protective mat separately. Additional features and benefits include: ✅ An Extra zipper that allows you to expand or shrink the roof bag's size according to your luggage needs. ✅ Heavy-duty, military quality materials ✅ 6 door hook straps are included - Use with or without a car rack. ✅ One size fits all cars and SUVs. ✅ 10 heavy-duty wide straps, NIFCO buckles, 2 SBS waterproof zippers for secure mounting - Once installed - the roof bag will not budge an inch. ✅ 100% Waterproof with TWO closing zippers and fully protected from rain, wind, sun, and snow. ✅ Quick and easy installation. ✅ Integrated car roof mat included. ✅ Will not scratch your car's roof surface or door seals. ✅ Light-reflecting logo when driving at nighttime. RoofPax Car Roof Bag is a Must-Have for Your Next Road Trip! Don’t Hesitate and Buy Now While Stock Lasts!