10 Best Rooftop Cargo Boxes 2026 in the United States

The Thule Motion 3 XL rooftop cargo box is a strong contender for those looking for extra storage space while traveling. Its wing-shaped profile and forward-leaning nose design help reduce drag, which can contribute to better fuel efficiency—an important factor for long road trips. With a sturdy build made from aluminum, this cargo box offers durability and a weight capacity suitable for a range of items. The easy-to-use PowerClick quick-mount system with an integrated torque indicator makes installation simple and secure, a definite plus for users who might find rooftop mounting challenging.

Accessibility is well thought out, as the box features a wide handle that allows you to open and close it easily with one hand. It also has a SlideLock system that not only secures the lid but also indicates when it’s properly closed, giving peace of mind about safety.

A notable downside is that this box is not water-resistant, which could be a concern for those traveling in wet conditions or looking to store items that need protection from rain. Additionally, while the cargo box is spacious, its weight of 23 kilograms might be heavy for some users to lift onto their vehicles.

The Thule Motion 3 XXL rooftop cargo box is an excellent choice for those needing a large, durable storage solution for road trips or outdoor gear. It offers a roomy 21 cubic feet of space, capable of carrying up to 165 pounds, which makes it suitable for bulky items like camping equipment or luggage. The aluminum construction provides strength and a premium feel, although it is not fully water resistant, so it is best suited for dry or light weather conditions.

Its aerodynamic, wing-shaped design helps reduce wind drag, potentially improving fuel efficiency compared to boxier models. Mounting the box is hassle-free thanks to the PowerClick quick-mount system, which signals when the box is securely attached, offering a tool-free setup that is convenient for occasional users. The lid opens and closes smoothly with one hand, aided by a wide handle, simplifying loading and unloading. Security is enhanced with the SlideLock system that locks the lid tightly and clearly indicates when it’s secured, providing peace of mind when leaving your vehicle unattended.

Additional features such as optional interior lighting and protective liners enhance usability but may increase the overall cost. The cargo box is relatively heavy (about 35 kg), which may make installation challenging for one person. While it does not offer full water resistance, it is solidly built and comes with a limited lifetime warranty. This rooftop carrier is ideal for travelers and families seeking a spacious, secure, and sleek storage solution with easy mounting and access; however, those frequently driving in heavy rain or requiring complete waterproofing might prefer other options.

The Thule 614 Pulse Cargo Box is a solid choice if you need extra storage space on your vehicle’s roof. It offers 14 cubic feet of capacity, which is enough for gear like 3 to 5 snowboards or luggage for a family trip. At 34 pounds, it’s lightweight enough to handle but still feels sturdy thanks to its hard plastic shell, designed to protect your belongings from weather and road conditions. The box is water-resistant, so your stuff stays dry during rain or snow. Setting it up is quick and easy with the FastGrip mounting system, which securely clamps onto most roof racks without requiring extra tools.

Loading and unloading is more convenient because the box opens from the passenger side, allowing better access in tight parking spots. Security isn’t overlooked either—the central locking system keeps the box tightly shut, and the special Thule Comfort Key only comes out when all locks are properly engaged, giving peace of mind against theft. Its aerodynamic shape helps reduce wind noise and drag while driving, although being 16 inches high means it adds some height to your vehicle, so you should be mindful of low clearances like garages. The 110-pound weight limit suits most typical cargo loads but might be limiting if you need to carry very heavy gear.

This cargo box is well suited for outdoor enthusiasts and families looking for durable, convenient rooftop storage that balances ease of use with security.