Hi everyone, I just wanted to add my two cents.
I got the extra large chameleon (not tall, the normal one bc i didnt want to see the insert so easily from the oustide) for my mini luggages and even though it is structured and I didn't have to take the rigid plastic from the sides or anything it kinda just collapses into my bag. The longer sides (which do not have the more rigid plastic inserts) are pretty much always laying down.
I don't know if I got a defective one, or if the tall ones would solve this issue, but having to constantly untuck those sides and straighten them out to reach my stuff kinda defeats the "organizer" part of this insert
. It is extremely easy to switch between bags tho lol.