10 Best Roof Top Cargo Carriers 2025 in the United States

The Thule Motion 3 XXL is a spacious rooftop cargo box offering 21 cubic feet of storage, making it ideal for families or anyone needing extra room for gear on trips. It supports up to 165 pounds, which should cover most luggage or sports equipment loads. The box is made of aluminum, giving it a sturdy yet lightweight feel compared to some plastic alternatives. Its aerodynamic, wing-shaped design helps reduce wind drag, which can improve fuel efficiency and lower noise while driving. Mounting is straightforward thanks to the PowerClick quick-mount system, which clicks to confirm a secure fit without tools, saving time and effort. Security is well thought out with the SlideLock system that automatically locks the lid and shows when it’s safely closed, plus the included locks add peace of mind. The wide handle allows easy one-handed opening and closing, which is convenient when loading or unloading.

A downside is that it isn’t water-resistant, so in heavy rain, water might seep inside unless extra protection is used. Its large size and weight (about 35 kg) also mean it could be challenging to handle alone during installation or removal. This cargo box suits those who want a reliable, roomy, and aerodynamic storage solution on their roof, especially for long trips, but users should be prepared for the physical effort required when mounting it.

The Thule 613 Pulse Cargo Box Alpine is a solid choice if you need about 11 cubic feet of extra storage on your vehicle’s roof. It offers a decent load limit of 110 pounds, which suits medium-sized gear like 4-6 skis or 3-4 snowboards, making it great for winter sports trips. Its dimensions—roughly 88.5 by 25.5 inches externally—are fairly large, so ensure your roof and crossbars can accommodate it comfortably. Weighing 30 pounds, it’s manageable to install and remove without too much hassle.

Thule’s FastGrip quick-mount system is a standout for ease of use, allowing you to attach the box securely in minutes without needing extra tools. The passenger-side opening simplifies loading and unloading, especially in tight parking spaces. The hard plastic shell is rugged and water-resistant, providing reliable protection from weather and road debris. Security is well thought out with a central locking system that ensures your belongings stay safe, and the unique Comfort Key only comes out when all locks are properly secured. This adds peace of mind when leaving your cargo unattended.

The box is moderately tall (12.5 inches) and extends 11.3 inches above the crossbars, which might affect vehicle aerodynamics slightly, potentially increasing wind noise and fuel consumption during long drives. The plastic material, while durable, may not be as robust as some premium models made with reinforced composites. This Thule cargo box is a reliable and user-friendly option for those needing extra space for skis, snowboards, or similar equipment, combining good security and convenient mounting. Just keep in mind its size and weight limit to ensure it fits your vehicle and cargo needs comfortably.

The SportRack Vista XL Rear Opening Cargo Box offers a substantial 18 cubic foot (510 liters) internal cargo capacity, making it a strong contender for those needing extra storage space for road trips or camping. Its dimensions (63 x 38 x 19 inches) provide ample room to accommodate various items while keeping them secure and protected. The cargo box is made from durable UV-resistant ABS material, ensuring longevity and resistance to the elements.

Weighing 28 pounds, it is relatively light and easy to handle during installation and removal. The tool-free mounting hardware adds to the convenience, making setup quick and straightforward, even for those not mechanically inclined. This product fits a variety of rack systems, including SportRack, square bars, round bars, and most factory racks, which enhances its versatility. A notable feature is the rear opening, designed for easy access away from traffic, which can be a significant safety benefit.

The max weight capacity of 100 pounds (45 kg) should be adequate for most users, but it's worth noting this limit to avoid overloading. The inclusion of a key and lock system ensures the security of your contents, adding an extra layer of protection. Although the aerodynamics may not be as streamlined as some other models, potentially affecting fuel efficiency slightly, the SportRack Vista XL is a solid choice for those who need a reliable, spacious, and secure cargo box for various travel needs.