This Boston bag is very lightweight and can be folded compactly when not in use♪ It also has many pockets! The cross charm attached to the zipper is also a cute detail♡ Perfect for your child's school trip or excursion♪ My daughter only used it once, so it's in very good condition ☺︎ Expanded: Approximately 56cm wide x 24cm high x 35cm deep Folded: Approximately 27cm wide x 23cm high x 6cm thick I recently started taking care of a cat (=^x^=) I will be careful, but there is a possibility that cat hair may get in, so please refrain from purchasing if you are concerned☆