This is a large business backpack for business trips. It's suitable for business trips of 3 nights or more. It can hold even more with the expansion feature. It's a backpack, so it's easy to move around. It has many storage pockets and is multifunctional, making it very convenient. I've been using it for about 2 years, so it shows some signs of wear, but there is no damage. Size (measured by the seller) Backpack orientation: Height 480mm, Width 340mm, Depth 180mm (260mm when expanded) The seller is 178cm tall (see photo)