Our MaxxHaul Rooftop cargo bag features waterproof zipper system with extra wide hook and loop flap, lockable zipper sliders, luggage combination lock for reliable waterproof grade and security. Constructed from PVC material with polyester reinforcement and UV coating for durable and heavy duty. Includes 1x roof cargo bag with 8 straps, 1x storage bag, 1x anti-slip mat, 1x luggage lock, 6x door hooks (2 within 6 hooks as backup). It can be quickly and easily installed in minutes, and can be easily folded for compact storage. Universal use on any cars, trucks, or SUVs with or without roof rack. For cars without rooftop side rails, the bag can be easily installed 4 door hooks and anti-slip mat without slip or scratch to your car. The 15 cu.ft. rooftop cargo bag is giving a large storage space allowing to hold 4-6 suitcases, luggage case, tents and other staffs. Bag weight capacity up to 100-lb.