These fun and interesting bags were first purchased in 1984 and are an interesting example of topology.
Each long strip of tough fabric is attached with a zipper and becomes a useful bag when you zip each of them up.
Four different shapes of the bag are possible depending on the distance from the beginning to the end of the strips.
You can even combine multiple bags in order to make a larger bag. If you’re constantly in need of several bags of various sizes several occasions, you wouldn’t have to go out and purchase a new one with these handy things.
You can actually find similar ones like these in various retails stores.