We’ve seen bags/luggages expanding to allow extra storage, but nothing quite like this. The XTEND’s suitcase literally shrinks vertically in size to meet carry-on dimension requirements, and then expands (when you need to) for when you want a large bag to Travel Bag, Design, Carry On Luggage, Luggage Sets, Luggage Bags, Buy Luggage, Luggage, Large Bag, Travel Bags