The Sonic cargo boxes from Thule aren't just designed to be well-built, Thule also made them look good. The Sonic XL cargo box adds an additional 17 Cubic Feet of cargo space for skis, snowboards and luggage. Features:
Patented AeroNose Design reduces drag and noise making it the most aerodynamic box available.
Patented Rear-Angled Base and expanded vehicle mounting points help maximize trunk and hatch clearance.
AcuTight Mounting "clicks" when you reach optimal hold to ensure your box is secured to the rack.
SecureLock ensures that all gear is locked and box is properly closed prior to driving
Dual-Side opening for easier loading and unloading from either side of the vehicle
Fits Thule rack systems, round bars and most factory racks
2 One-Key Locks (included) secure box contents and lock the box to the carrier
Volume (cu): 17
Length (in): 90 in
Width (in): 34.5 in
Height (in): 16 in
Height off crossbar: 16 in
Weight (lb): 51 lb
Mounting system: Acu-Tight
Box opening: Dual-Side
Load capacity (lb): 110
Load capacity Skis: 6-8
Load capacity Snowboards: 4-6
Max length of skis (cm): 201
Fits Aeroblade, Square bars and most Factory crossbars.