10 Best Rv Cargo Carriers 2025 in the United States

The Thule Motion 3 XXL is a large rooftop cargo box offering 21 cubic feet of storage and a strong 165-pound weight capacity, making it suitable for carrying plenty of gear on your RV or vehicle roof. Its aluminum material ensures a sturdy yet relatively lightweight build, while the aerodynamic wing-shaped design helps reduce wind drag, which can help save on fuel during long trips.

Mounting is simple and secure with Thule’s PowerClick quick-mount system, which provides clear feedback when properly attached, so you don’t have to second guess if it’s safely fixed. The box also features a SlideLock system that automatically locks the lid and shows when it is securely closed, adding a good layer of security along with included locks. Opening and closing is easy with a wide handle designed for one-handed use, which is convenient when loading or unloading quickly.

This model is not water resistant, so it may not fully protect your cargo from heavy rain or harsh weather conditions. The size and weight of the box might require some care during installation and removal, especially for less physically strong users. Accessories like interior lighting and protective liners are available but sold separately. This cargo box is a strong option if you need a large, secure, and easy-to-use rooftop carrier and generally drive in fair weather or can take extra care during rain.

The Thule Motion 3 LTitan is a hard-shell rooftop cargo carrier designed for users needing extra storage space on their vehicles, such as RV owners or travelers. Its large size (80 x 37.35 x 18 inches) offers a generous volume of around 450 liters, making it suitable for carrying bulky gear or luggage. The aluminum material ensures a sturdy yet lightweight build, which contributes to durability and helps with fuel efficiency thanks to its aerodynamic, wing-shaped design with a forward-leaning nose that reduces wind drag.

Installation is straightforward and secure with the PowerClick quick-mount system, which uses a torque indicator to confirm proper fitting, so you can be confident it’s safely attached. The SlideLock system adds a layer of security by automatically locking the lid and showing when it’s closed properly, helping to protect your belongings. While it is water-resistant rather than fully waterproof, this should be sufficient for most weather conditions, especially with an optional protective cover available. The lid’s wide handle allows for easy one-hand operation, which is convenient when loading or unloading.

The package weight is relatively heavy at 29 kilograms, which might require some effort to lift onto the roof. Its water resistance may not fully protect contents in very heavy rain or submersion situations. This cargo carrier is a strong choice for those looking for a durable, secure, and aerodynamic roof box with easy installation, ideal for road trips and outdoor activities needing extra cargo space.

The Thule Force 3 (Size M) is a solid choice for anyone needing extra storage space on their vehicle roof. It offers 14 cubic feet of cargo volume, which is roomy enough for camping gear, sports equipment, or luggage without being overly bulky. The box measures 69 x 32 x 17.4 inches and weighs about 52 pounds, so it’s not too heavy to handle but still requires some care when mounting or removing. Made from durable plastic, it’s designed to withstand daily use and active lifestyles while keeping a sleek, aerodynamic shape that helps reduce wind noise and drag.

This cargo box mounts on the roof with a tool-free system that clicks securely into place, making it easy to install and know when it’s properly attached. It fits most vehicles including SUVs, trucks, cars, and even electric vehicles, thanks to its universal fit design. A convenient dual-sided opening lets you access your belongings from either side of the vehicle, which is especially handy in tight parking spots. Security is well considered with Thule’s SlideLock system, which automatically locks the lid and shows a clear indicator when the box is fully secured. This provides peace of mind that your gear stays safe while you’re on the road.

While not fully waterproof, the weather-resistant design protects your cargo from rain and snow reasonably well, though heavy downpours might occasionally let some moisture in, so packing your items in waterproof bags is advisable. At just over 50 pounds, the box is somewhat heavy to lift onto the roof, so you may want assistance for easier handling. Also, although it is rated highly for durability and safety through rigorous testing, it doesn’t list a maximum weight capacity explicitly, so you should check your vehicle’s roof rack limits before loading it up. The Thule Force 3 is a user-friendly, secure, and versatile roof cargo box with good size and weather resistance, making it a practical option for most outdoor and travel needs.