Here's a very clever luggage system from Biaggi, coming May 2017.

This company makes so many different bags, I'll just talk about one that is out now. (Watch the video to see a demo of the newest one, due out in May, 2017.) Biaggi says you can pack smarter and fit everything you need for an extended trip in their inventive and spacious ZipSak 31-inch MicroFold Upright. A patent pending Z-fold design allows this sturdy duffle to magically transform from a small pouch into a spacious 31-inch high rolling duffle with plenty of room for all your travel essentials. (Check the photo on the left. That little bag near the bottom opens to the full sized bag behind it!) A convenient top zipper can be used for loading like a tote bag, a durable wrap-around zipper allows you to pack items flat and secure them with a strap, similar to a conventional suitcase. And once you reach your destination, the ZipSack quickly and easily compresses back into the small pouch that can be hidden away. The folded duffle takes up to 80% less room than comparable bags, and weighs only 5.7 pounds! The ZipSak duffle is constructed of a tough crinkle oxford nylon fabric in a selection of trendy hues and features four durable pro-velocity spinner wheels for easy maneuverability. Prices range from about $59.99 to $99.99.

Giz Wiz Video: https://youtu.be/EHOSqumgOeA

Company website: http://www.biaggi.com/