Why have the extra weight and hassle of the trailer...the backpack is meant to be worn on the back. You'd be amazed at how comfortable it is. I've used the backpack on both of my previous trips. The only time I wouldn't want to use it is during the winter months up north. I don't want anything on my back to trap heat in during the cold winter months. When the pack is properly loaded it rides very comfortably on the back.