Furoshiki cloths / bags is the multi-purpose solution of carrying baggage.
These bags can be folded in an array of different ways, so you can alter it to the size you need. The versatility of these bags make it useful for carrying, accessories, kids toys, clothing, books, and even as a shopping bag substitute.
When you’re not using it as a bag, you can easily fold it and simply fit it into your pocket. Originally used in the Nara Period to storage your own cloths when going to a public bath, avoiding confusion with other people.
The furoshiki bags were very popular in Japan, but the usage declined with the western style bags (for fashion) and plastic bags (for utility) . Recently, the popularity of the furoshiki bags has been increasing, with designers proposing new patterns, fabrics (ex. jeans) and printed designs on the cloth that refresh the traditional furoshiki, making them more fashionable for modern style. At the same time, the Japanese Ministry of Environment has been promoting the use of furoshiki to protect the environment for Japan and the World.You can find plenty of tutorials on Internet to learn how to fold a furoshiki.
The following video shows the basic knot and fold for a beautiful bag.