My Bag Buddy For World Travelers A Compact And Expandable Carry on BagMy Bag Buddy for the World Travelers. Unfold the pouch and make it into an extra carry on for the last minute shopping done at the Duty free shops to surprise your loved ones at home. This compact and expandable carry on bag firmly slides over the handle of your primary carry on suitcase, making it easy to carry without sliding when rushing to catch your flight. It neatly folds into an 8 inch pouch when not in use and works like a savior when in use.