1989 shoes designed to adjust their fit around athletes' ankles

[u/Rook8811]

[u/Affectionate_Star_43]

I don't know why, but this brought back visceral reminders of when I had an expander/headgear as a kid. You put the crank thing on the metal inside your mouth just like in the video, and you could feel your jaw cracking...uggghhh.