How to Choose the Right Size Cargo Box
Thule Sonic XL Roof Box
This product is not available. Good news: we have a newer version.
Slicing through the air like a hot knife through butter, the new Thule Sonic XL roof box features a patented aerodynamic design.
Shop newer version- Front of cargo box features a patented AeroNose design that is pointed so box cuts through the air, helping to reduce drag and noise
- Rear of cargo box also features a patented rear-angled base design, helping to maximize trunk and hatch clearance
- Mounting system clicks when you reach the optimal hold, so you'll be on the road in seconds; can be mounted on square and round crossbars and most factory racks (see Fit List)
- Patented, dual-side openings let you access your gear from either side of the box
- Locking system features an external lock-assist knob that is easy to use; built-in safety feature means the key can only be removed when the box is fully closed
- User-friendly locking system includes an oversize key; a lock is located on each side of the box, and each one comes with 2 keys
- Thule Sonic XL roof box holds 6 - 8 pairs or skis or 4 - 6 snowboards
Will this fit your setup? Check the Thule Rack Fit Guide
View all Thule Cargo Roof Boxes| Best Use | Travel |
|---|---|
| Box Opening | Dual Side |
| Gear Capacity (L) | 481 liter |
| Gear Capacity (cu. in.) | 29,376 cubic inches |
| Ski Load Capacity | 6-8 pairs |
| Snowboard Load Capacity | 4-6 boards |
| One-Handed Opening | Yes |
| Internal Straps | Yes |
| Length | 7 ft. 6 in. |
| Width (in.) | 34.5 inches |
| Height (in.) | 16 inches |
| Weight | 51 pounds |
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