When were possibles bags invented?

Possible bags, often referred to as "possibility bags," were popularized in the early 2000s as multifunctional bags that could adapt to various uses. The concept of bags that can change shape or function has existed in various forms for centuries, but the modern interpretation gained traction with the rise of minimalist and versatile design trends. Specific brands and designs, such as the ones seen in practical and travel-focused markets, emerged around this time.