I fitted this luggage bag with some foam and it does the trick.'''''''''
Step 1: Things you'll need:
*long enough ruler or like I did a scrap piece of 4x4
- hot glue gun
- plenty of glue sticks
*piece of hard cardboard(I use the box from the printer)
Step 3: Measure and cut your foam
Step 4: Trim and fill
and yes , measure 'cause I try not measuring and I find out foam moves a lot ,ah yes the felt pen that's what I use it for.