Carry-On Expandable Luggage Bag by Airway.  NEW. It belonged to my mother, but she never used it. 
I'm not sure what the material is. I think either Canvas or Nylon? 
It closes with a zipper across the top and part of both sides.
The 2 front pockets that have zippers, can hold some small items. 
It measures 20 inches wide and is 13 inches high. 
When it's open, the bottom part measures 7inches wide. 
Once it's empty, it can be folded up into a small, zippered bag. When folded up, it measures 7 inches by 6 1/2 inches. 
The last 4 photos show it when it's empty and folded up.