Thule's Wing Bar is the quietest and most practical option.
The Thule Wing Bar gives you more load area than the Thule Wing Bar Edge system making them a better choice when you need to carry multiple items. It comes with an industry standard 'T' track making for maximum compatibility with accessories. The box contains two bars, end caps, 'T' track rubbers etc and the bar is 27mm high.
Check the Roof Rack Guide to see all parts required for your car.
For more information please see: Which Thule Roof bar is Right For My Car?