Note: Subject to approval by a Rack Attack staff member.
The Thule Sonic Box combines efficiency with style. It's designed for those looking for an aerodynamic box with a wide variety of sizes and convenience options. The Thule 635B Sonic XL Black has a 17 cu.ft. cargo capacity.
Ask A Tech if This Rack Fits Your Car
Thule 635B Sonic XL Black Instruction Manual (.pdf)
Thule warranty information.
Below you will find a list of the most frequently asked questions for this product. If you need more assistance you can email a rack-install technician, or call us at:
If you drive an SUV or van, probably not. Be sure to measure the total height of the vehicle with the Thule 635B Sonic XL Black installed, and keep that information handy (on the inside of your sun visor is a great place). Running into your garage will, unfortunately, void the box's warranty.
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