Shoes with springs

Mechanix Illustrated in 1939 had these spring heeled shoes, and just a couple years ago I saw new versions in a store, neato. If you look at the pages of all these old magazines, even the somewhat “out there” ideas, all seem to eventually make an appearance again… – Link.

Related:

• Z-CoiL (commercial shoes with spring heel, sold now) – Link.
• DIY Spring shoes – Link.