I made some modifications to this bag pattern by omitting the back strap and slip pocket, and adding a panel 19" wide x 9" tall. I binded the top and bottom of the panel, basted to bag back on each side. I then stitched in 5" along the bottom of the panel, being sure to leave the center section open. I then continued assembly as described in pattern. I felt this created a more sturdy sleeve for a suitcase handle,and added 2 small pockets. This project took longer and cost more than expected, but I've gotten so many compliments on it, and people ask what brand it is or where I bought it.