The Thule 422XT Xsporter multi-height aluminum truck rack provides maximum loading flexibility, superior carrying capability and sleek, stylish appearance through patented height adjusting load bars, 6000 grade aluminum design and reinforced bars. With this particular rack setup you can pretty much do it all. Not only can you carry lumber and ladders, but you can carry skies, kayaks, canoes, and even cargo baskets and cargo boxes. The Xsporter has the ability to raise to different positions. By that, you can adjust the level of the bars to accommodate what ever you are carrying. A big plus with the system is you still have the bed of your truck to carry other items.