The WindDiffuser technology interrupts the airflow, resulting in reduced noise and air resistance, as well as lower fuel consumption. The TrailEdge design minimizes air resistance by separating the air from the carrier. The adjustable SmartSlides length scale also serves as an aerodynamic cover under the carrier, allowing for quick and hassle-free carrier installation. The SwingBlade end cap opens to provide access to the T-slot for easy accessory attachment. The upper T-profile with QuickAccess allows for simple attachment and removal of accessories. The internal BoxBeam structure ensures an exceptionally stable load support. With the Thule buying guide, you can find the recommended crossbar length for your vehicle.