One of the most common travel inconveniences is having to buy another suitcase or duffel while on vacation so that you can schlep all your newfound, exotic goodies home. And nobody wants to bring an extra, empty suitcase with them in the first place. The solution? The convertible key chain Kiva bags.

Tango Diva tested these sleek, colorful bags that condense into its own pouch that can fit in the palm of your hand and can be clipped onto a key chain. The bags expand into roomy totes, duffels, backpacks, or “sling packs.”

With a variety of colors, including classic black, red, blue, and green, as well as several floral designs, these extremely lightweight and stylish bags won’t add any weight to your luggage until you fill them up with souvenirs.

These bags are also an eco-friendly way to lug groceries, use for shopping, and as a gym bag.