One of these and some cordage would be a bloody useful piece of kit for the pocket or backpack.
For the last 20 years I’ve kept a pair of cheap Wal-Mart glove liners (usually seasonal items, about a buck a pair) in the pocket of every coat I own. Hands down (heh) that’s easily been the most useful lifehack I’ve done. But one of these and some cordage would work in a pinch