First don't believe in the videos on how easy it is to install. It's a geometric nightmare. Had to run out and buy some stainless steel quarter inch washers to shim the mounting clamps. Had the panel assembly in and out three times so as to shim the clamps in order to get it to track right. Next it leaks worse than a leaky boat. Called Peragon and they thought it was most likely leaking in between the head rail and the locking panel. Sent me a new head rail. Had to completely take it apart and re assemble. Still leaks. It's leaking in between the panels even third seam in from the tail gate, I can open the tailgate and see water dripping in. I primarily haul camping and fishing gear. Everything gets wet. Panels are flimsy and I fear that even a small dead branch falling from my tree will damage it. I returned it. Re packaging it even with the original boxes was difficult. Glad I got my money back, I'm going to get a Diamondback.