It's a size that can hold A4 size documents, laptops, etc. The main body has an expandable feature that allows you to adjust the depth according to the amount of luggage, accommodating sudden increases in belongings. It has large pockets on the front and back, making it easy to sort and manage your luggage. [Remarks] * Please note that the item may be sold if it is also listed elsewhere. * The color may appear different from the actual product due to lighting, shooting environment, and your monitor settings. Please understand this beforehand. * This is a single, used item, so returns due to customer convenience after arrival are not possible.