Regardless of whether it was the intention of the previous post or not (it almost certainly was not, my brain's just ALWAYS got the dial set to "okay there's excess and then there's This") I am now smitten with the thought of a living costume character who just Always Has More Room. They unzip, their wearer climbs in, they zip back up,
eventually they unzip for another wearer, and the previous one is nowhere to be found...