Arrived quicker than expected. I was initially disappointed when I opened the package and saw that there was no provision for my backrest, but after contacting Airflow, they sent me a link to a video instructing me how to cut a hole in the seat cover. I used a soldering iron with a knife attachment, and it worked very well. My wife and I tried out the seat cover on a ride during a cool fall day. We could feel the air movement below our butts, which will be great in the summer. The seat cover rai...