This is a collaboration product between SUIT COMPANY and Ace. I used it for commuting for one year. Although it's not very visible, there are some scratches and slight stains that become apparent when exposed to light. I purchased it for around 18,000 yen. Height: 30.0cm Width: 43.0cm Bottom Width: 40.0cm Depth: 12.5cm Handle: 56.0cm Tote Bag / ACE Joint Development / Polyester Twill x Faux Leather - The depth is made wide enough to comfortably fit a convenience store lunch. - The highly visible main compartment has an expandable feature that increases capacity by opening the side zipper. When opened, it can accommodate B4 documents, making it easy to store large files and bulky items. - It has a PC pocket with cushioning material that can store PCs up to 13.3 inches. It also has a flap, making it ideal for storing documents you don't want to get wet on rainy days. - It is equipped with an organizer pocket for neatly storing business tools and multiple inner pockets for organizing small items. It also has a bottle holder that can be folded and secured with a button when not in use. - The pocket on the back can be attached to a carry-on bag by removing the bottom zipper. The zipper pull can be stored away so it doesn't get in the way.