For tradespeople, farmers and others who frequently need to cover and uncover their shoes (to protect interior surfaces from mud or worse), disposable booties are an unsustainable solution. They're also a pain to take on and off. This reusable and automatically-wrapping design seems much better:
I've been searching for something like this for a long time. On our free-range farm, I inevitably step in the shit of some animal on a daily basis, and pulling my boots off and on every time I need to go back inside to retrieve something gets old.
However, these wouldn't 100% work for my application. While getting them on looks easy, getting them off requires a fair amount of manual manipulation…
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…meaning every time I removed these, I'd wind up with animal feces on my hands.
Question for you: How do you reckon these work? I figure inside the fabric is a polypropylene sheet molded into a sprung shape, with raised tunnel-like seams serving as hinges, and when you collapse the tunnels by stepping on them, the spring action is released. [Edit: I believe reader Kyle Lamson has figured it out. See his comment below.]
(Lastly, I was not able to find what company or designer invented these. There are tons of variants on the market. It's possible they were invented by a fellow named Joel Fersaci, whose Step in Sock model is featured in the video above.)