Waterproof Durable High Quality Material - LUVODI car roof bag is made of superior PVC through high-frequency voltage bonding instead of traditional sewing process which make it fully waterproof and never crack, ensuring a long service life, protecting cargo against road grit, sun, wind and rain. Two-way zipper for easy open and close Secure and Sturdy - LUVODI car rooftop bag comes with 8 high-elasticity thick, wide, sewn straps and heavy duty clasps, which can keep you carrying stuff and bag steady without a little bit of movement even on a bumpy road Large Storage Capacity - LUVODI cargo carrier bag with 15 cubic feet (425 litres) capacity can hold all your carrying items in one bag instead of squeezing those in your car trunk in mess. Perfect for family road trips, self-driving travel, weekend adventures, or moving day Easy Installation - LUVODI strong cargo bag is designed for easy attachment on all four sides of any roof rack, the cargo bag includes eight cinch straps with buckles. Simply loop the straps around the cross bars and rails and connect the straps to the buckles to click closed Bonus Stuff Sack - LUVODI vehicle rooftop luggage bag includes a extra purpose-made,extra-large stuff sack at no additional charge that you can fold your rooftop bag and store it in the sack when not in use. Bring much convenience to you from all aspects