10 Best Roof Top Cargo Carriers 2026 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 Yakima Cargo Carrier Box with Dual Sided Opening, SkyBox NX, is an extra-large black rooftop cargo carrier offering 18 cubic feet of storage space. This makes it suitable for families or groups looking to haul gear for up to four campers. Its flattened floor optimizes internal space, and it can accommodate snowboards and skis up to 76.77 inches long, making it versatile for various outdoor activities.

The dual-sided opening allows easy access from either side of the vehicle, and the included SKS locks enhance security. The removable torque limiting knob and integrated interior tie-down points ensure a secure installation and safe transit of your belongings. However, at 53 pounds, it may be relatively heavy for some users to handle during mounting and removal. Made of plastic, it may not be as durable as metal alternatives, but it is designed for a sleek appearance with NX nano texture.

The carrier is compatible with all Yakima StreamLine crossbars and most factory or aerodynamic crossbars, providing flexibility in mounting options. One notable drawback is the product's water resistance level, as it is not water-resistant, which could be a concern in wet conditions. Despite these minor issues, the Yakima Cargo Carrier Box is ideal for those who prioritize ample storage space, ease of access, and secure transport features while being mindful of occasional limitations in weight and durability.

The Thule Motion 3 XL is a spacious rooftop cargo carrier with an 18 cubic feet capacity, making it suitable for families or travelers needing extra storage space. Its aluminum shell offers a sturdy and lightweight design, which helps keep the carrier durable without adding too much weight on your vehicle. Measuring 88 inches long, 18 inches wide, and 39 inches high, it fits most vehicles thanks to its universal roof mount system. The PowerClick quick-mount system is a standout feature, giving you an easy and secure installation with a helpful torque indicator that 'clicks' when properly tightened. Aerodynamics are well addressed with a wing-shaped, forward-leaning nose, which helps reduce drag and can improve fuel efficiency during travel. Security is also thoughtfully designed: the SlideLock system separates locking and opening functions, automatically securing the lid while providing clear feedback when it's properly closed. The sturdy lid with a wide handle makes loading and unloading simple, even with one hand.

Although it's not water-resistant, its solid construction should protect most belongings from light rain or splashes. The option to add accessories like interior lighting and protective liners adds convenience but may come at extra cost. The Thule Motion 3 XL represents a strong choice for those wanting a reliable, spacious, and easy-to-use hard-shell rooftop carrier, though if you need full weatherproofing, you might want to consider other models.