The practical loading solution for the rear of your car: Thule Onto 2 gives you plenty of storage space with easy access - at the rear of your car. Keep the roof free for maximum reach or to transport other loads. Or simply save your back by not having to lift onto the car roof. This functional 300 litre luggage box is simply attached to the trailer coupling. PFAS-free water-repellent material: The outer material of the Thule Onto 2 has a PFAS-free water-repellent coating that prevents water and dirt from sticking to the surface. To maintain optimum performance, clean the bag carefully with mild soap and water - do not use a pressure washer. Allow the bag to dry completely before folding it up for storage. If the water repellent properties fade over time, refresh the surface with a water repellent spray available from outdoor retailers.