Piorama

Here you not only get one bag, but it has three different sizes, you can adjust when you need it, plus there are multiple configurations.

You can change the size from 31 to 46 and to 62 liters and is collapsible for storage. Convert your bag instantly and it will expand or contract. Use it as a Duffel bag, backpack, or sling.

This bag is made for anyone who loves to travel, photograph and others who need space. Flying a lot? Use it as handluggage and on your back flight transform it to a bigger bag. I know how it is while traveling, you always come back home with more carry on than on the flight there.

Extra Information:

• Adjustable up to 9 different versions
• Six different colors
• Simple and easy to transform
• Three sizes 31, 46 and to 62 litre