【Safe Design】: For security reasons, we use 8 reinforced adjustable straps to keep the cargo carrier in place. These straps can strengthen the roof bag and make the roof bag more securely installed on your roof. 【Large Storage Space】: Roof bag was designed to solve the problem of limited storage space in the car. 20 cubic feet rooftop cargo bag allows you to hold up 4-6 suitcases, travel luggage case, tents, sleeping bags and more. Free up inside vehicle space for more comfortable on the way. 【Easy to Install】：rooftop cargo carrier fits for any car, truck, or SUV. It can be quickly and easily installed to roof rack in minutes whether your vehicle has a rack installed or not. Folds compact for easy storage. 【Waterproof Design】: Made of PVC tarpauline cloth, roof bag adopts a genuine waterproof zipper, used in extreme weather and is protected with a double flap. All seams are heat welded and stitched to ensure they are watertight. But please note that it's not 100% waterproof under rainstorm weather. 【BAG LUGGAGE CARRIER - TRAVEL NOW】A MUST FOR YOUR CAR.This soft cartop carrier is perfect design for happier camping, travel, move. Designed to fit all car rooftops, it can increase your vehicle's cargo space without impending on passenger comfort, making it ideal for families on-the-go, adventure seekers or anyone who needs extra space while traveling.