My blue jeans go through a lot. This pair not only is all ragged at the bottoms from stepping on them, but they were tearing up the back. I decided to go with it. I tore them both a bit more up the back middle. Each leg having the same length tear. I found this fabric in my stash. It looks like denim and it is woven on a twill like denim. I sewed two triangle pieces so that the raw edges were hidden. Then I sewed it to the jeans making sure that it made a triangle shape. It is very subtle. Hopefully this will help them last longer.