Used once in pristine condition. Perfect bag to take on the plane for personal item - will fit under the seat if not expanded fully so you dont have to pay extra for carry onitem Has wheels - you pull the shoulder strap like a leash or you can carry on your shoulder. Outer pockets - very useful- Bottom is 15"x10" Fully expands to 20" high by 15" wide by 10" deep Folds almost flat for storage