Step 17: Finishing Touch - Covering Remaining Spots with Fabric
I used a bit of E-6000 glue to hold the fabric in place. I added glue along the front edge of the case and very carefully folded the fabric and glued it in place along that edge. After that was set I added more glue toward the back of the case to tack the fabric in another spot.
Basically, any unfinished wood that is visible when the wooden box is in the suitcase should be finished in some way - I added fabric.