?Water Resistance?- SPAUTO cargo roof carrier is Crafted from rubber laminated nylon, double-sealed seams are sewn for strength,welded to block out moisture.The zipper also has its own built in protective layer on top which built on the flap rather than on the bag, protect your gear and luggage from rain and dust on the road. ?ROBUST & Security?- This Top Cargo Bag with 6 extra Strong, wide straps and 2 long(3 meters) straps which can across the whole bag to ensure that everything stays in place even on rough and bumpy road ?Huge Capacity?- The Roof Bag overall size is 51''x39''x17'', Carry 20 cubic feet worth of essentials. Our roll up and stuff away car roof bag provides extra space for your luggage, travel safely and in comfort with your family and friends! It only takes seconds to attach! ?Perfect for Road Trip?- Take the cargo bag to the park, the beach, the sports field, or any place you need to be storaged,the carrier bag for vehicles which with roof racks or rails in the top of the car, which like,suitable for cars, vans, SUVs,etc... ?Package & Install?- 1*luggage bag, 1*storage bag, 6*straps, 6*extra straps.; Thanks to the foldable material, our car top carrier attaches in only a matter of minutes,also easily to fold the entire roof bag inside the duffle bag when not in use. More detail be tell at description,any problem please do not hesitate to contact us, our support team will response within 24 hours.