Thule Motion 3 XXL Rooftop Cargo Box – Black Glossy

Combine premium styling with maximum rooftop storage using the Thule Motion 3 XXL Rooftop Cargo Box. Its expansive 21-cubic-foot capacity provides room for skis, snowboards, luggage, camping equipment and other bulky cargo while freeing up valuable space inside your vehicle.

As the largest standard-height Motion 3 size, the XXL is designed for families, winter-sports enthusiasts and travelers carrying substantial loads. Its aerodynamic profile, glossy black finish and intuitive one-handed operation provide a refined blend of space, efficiency and style.

Product Highlights

• 21 cubic feet of storage for luggage, camping equipment, skis, snowboards and other bulky gear.
• Room for skis up to 215 cm makes it ideal for longer winter-sports equipment.
• Aerodynamic wing-shaped profile with a forward-leaning nose designed to reduce drag.
• Wide ergonomic handle provides smooth one-handed opening and closing.
• DualSide opening provides convenient access from either side of the vehicle.
• PowerClick quick-mount system provides fast, tool-free installation with an integrated torque indicator.
• SlideLock security indicates when the lid is securely closed and locked.
• Black glossy finish complements the clean lines of modern vehicles.

Why Choose the Motion 3?

The Motion 3 combines generous storage capacity with premium design and refined everyday operation. Its contemporary shape is designed to complement your vehicle while providing convenient access to equipment throughout the year.

Compared with a more utility-focused cargo box, the Motion 3 emphasizes aerodynamics, one-handed operation, glossy styling and compatibility with premium accessories such as fitted liners, interior lighting and storage covers.

Why Choose the XXL Size?

The Motion 3 XXL is the largest standard-height option in the Motion 3 lineup. Its 21-cubic-foot interior is intended for customers who need maximum rooftop storage for extended trips, family vacations, camping adventures and winter travel.

The extended 91.3-inch length can accommodate skis up to 215 cm, while the 36.2-inch width provides generous space for luggage and general cargo. Because of its substantial size, carefully confirm available roof space, vehicle roof capacity, crossbar positioning and rear-hatch clearance before ordering.

Maximum Capacity for Every Season

The Motion 3 XXL can accommodate up to 5–7 pairs of skis or 3–5 snowboards. Outside of winter, its spacious interior is ideal for suitcases, duffel bags, tents, sleeping bags, strollers and other bulky travel equipment.

The cargo box has a maximum load capacity of 165 lbs. Your actual allowable cargo weight is determined by the lowest-rated component in the system, including the vehicle roof, crossbars, mounting system and cargo box.

Designed with Aerodynamics in Mind

The Motion 3’s wing-shaped profile and dynamic, forward-leaning nose are designed to reduce aerodynamic drag. Its streamlined silhouette provides a clean fit on modern vehicles while helping limit unnecessary wind resistance during travel.

Smooth One-Handed Operation

A sturdy lid and wide ergonomic handle provide controlled one-handed opening and closing, even when the cargo box is wet or dirty. DualSide opening lets you access your equipment from either the driver or passenger side of the vehicle.

This flexibility is especially helpful in garages, parking lots and campsites where access may be limited on one side.

PowerClick Mounting and SlideLock Security

Thule’s PowerClick quick-mount system makes installation straightforward and intuitive. The tool-free mounting hardware tightens around compatible crossbars, and an integrated torque indicator clicks when each mounting point has been tightened correctly.

The SlideLock system separates the opening and locking functions. It automatically locks the lid and indicates when the box has been closed correctly. Because the XXL weighs 57.2 lbs, having two people available can make lifting and positioning the box easier.

Enhance Your Motion 3

Customize the Motion 3 XXL with available accessories designed to make packing, loading and storage more convenient.

• Custom-fit box liner helps protect the interior and your cargo.
• Interior box light improves visibility when loading after dark.
• Protective lid cover helps keep the cargo box clean while stored.
• Thule GoPack duffel set makes efficient use of the available interior space.
• Ski carrier adapter helps organize winter equipment inside the box.

Roof Rack Compatibility

The Motion 3 XXL installs directly on several Thule crossbar systems. Some truck, van and platform-rack applications require an adapter.

Specifications

Fitment Notice: The Motion 3 XXL is a very large cargo box. Compatibility depends on the vehicle, roof rack, crossbar dimensions, crossbar spacing, roof-load capacity and rear-hatch clearance. Confirm all measurements and load limits before ordering. Contact The Rack Shop if you need help verifying compatibility.

Manuals and Fit Resources

Review installation instructions, cargo box comparisons, accessory compatibility and vehicle hatch-clearance information before purchasing.

• Roof Box Safety Information >
• Cargo Box Accessory Compatibility Guide >

Questions?

Need help with fitment, compatibility or choosing the right product? Our team is happy to help. Reach out by email, give us a call, or stop by our Austin showroom.

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Call us at (512) 351-9849