I bought this to use on my Honda Element with factory cross bars. The vehicle does not have side rails, so I was looking for something that could attach to the cross bars without additional clunky hardware. The Autofly Synthetic was just that! I love that I can attach it to either side of the car, or even off the back, depending on my needs and the camping spot. I also like that I completely take it off when not in use, so it's not prone to long-term sun and weather damage. Since there are many strap positions to attach to the vehicle, I can adjust the position so that both the back and front doors are shielded from rain on one side of the car.
The materials seem very durable. We had both rain and wind this past weekend, and the Autofly stayed strong and shielded us with minimal water pooling on top. We are very happy with this product!