10 Best Cargo Boxes 2026 in the United States

The Thule Motion 3 XXL rooftop cargo box offers a large 21 cubic feet capacity, making it a great choice for families or anyone needing extra storage space on road trips. Its aluminum shell is sturdy and durable, but it’s not water-resistant, so it’s best to avoid heavy rain or snow exposure. The aerodynamic, wing-shaped design helps reduce drag, which can save fuel and reduce wind noise compared to bulkier boxes.

Installation is straightforward thanks to the PowerClick tool-free mounting system, which signals when it’s securely attached, making setup quick and stress-free. The wide handle and one-handed operation allow for easy opening and closing, and the SlideLock system adds a layer of security by automatically locking the lid and showing when it’s properly closed. However, at 35 kilograms, it’s quite heavy, so lifting it onto the roof might require some effort or an extra pair of hands.

This cargo box is well-suited for those who prioritize capacity, ease of use, and aerodynamic efficiency. If you need full water protection or a lighter option, you might want to explore other models. Accessories like an interior light and protective liner are available but sold separately.

The Thule Force 3 XL is a spacious cargo box offering 18 cubic feet of storage, making it ideal for families or active individuals who need extra room for gear during trips. Its size fits well on SUVs, trucks, cars, and even electric vehicles, thanks to its roof-mounted design and tool-free installation. The aerodynamic shape helps reduce wind resistance and noise while driving, which is a big plus for long journeys.

Made from durable plastic, it’s built to handle daily use and various weather conditions with a water-resistant design, although it may not be fully waterproof in heavy rain. One standout feature is the dual-sided opening, which makes loading and unloading cargo easier from either side of your vehicle. The mounting system is straightforward, and a simple click lets you know the box is securely attached. Security is well-covered through the SlideLock system, which locks the lid and clearly indicates when it’s closed properly, giving peace of mind that your belongings are safe. At 66 pounds, it is reasonably lightweight for its size, making installation manageable for most users.

The cargo box ranks well among hard-shell carriers and is known for strong customer satisfaction. Its large dimensions require checking your vehicle’s roof space and clearance, especially in garages or low areas. This cargo box suits those who want ample, secure, and easy-to-access storage with a sleek, durable design for everyday adventures.

The SportRack Vista XL Rear Opening Cargo Box stands out with an impressive 18 cubic foot (510 liters) capacity, providing ample storage space for road trips or family vacations. Its dimensions of 63 x 38 x 19 inches ensure that it can accommodate a variety of items while fitting securely on your vehicle. Made from durable UV-resistant ABS plastic, the cargo box promises longevity and protection against the elements.

The rear opening design enhances safety by allowing access from the rear, keeping users away from traffic when loading or unloading. This cargo box is compatible with multiple rack systems, fitting SportRack, square bars, round bars, and most factory racks, which makes it versatile for different vehicles. Installation and removal are hassle-free thanks to the tool-free mounting hardware, making it user-friendly even for those not mechanically inclined.

Security is well-addressed with the inclusion of a key and lock, ensuring that your belongings are safe during travels. It’s worth noting that the maximum weight capacity is 100 pounds (45 kg), which might be limiting for heavy gear. Additionally, while the box is aerodynamically designed, it may still affect fuel efficiency slightly due to added weight and drag. This cargo box is ideal for travelers seeking a spacious, durable, and easy-to-use storage solution for their vehicle.