I purchased this but haven't used it much as I primarily use another backpack, so I'm selling it. The following is quoted from the purchase site: 【Design】 This multi-storage item is recommended for commuting to school or work, as well as for travel, use as a mother's backpack, or as a disaster preparedness backpack. It comes with a chest strap to prevent it from slipping off the shoulders, making it safe for those with sloping shoulders or a slender build♪ The shoulder straps with buckles can be put on and taken off while wearing a baby carrier, which is a nice feature for those with children! The zipper pulls are made of the same material and are slightly longer for easy opening and closing with little effort. This is a functional item that allows you to neatly sort and store even small items! 【Functionality】 A4 size can be stored. Compatible with 13-inch PCs. Comes with a key save to prevent keys from getting lost. The front of the main compartment has a mesh pocket that allows you to see the contents and can be accessed from the top and bottom. The side pockets with both gathers and zippers can neatly store folding umbrellas and PET bottles. *Number of pockets x 14 Height: 42cm Width (top): 18cm Width (bottom): 26cm Depth: 15cm Handle rise: 8cm Shoulder strap adjustable size: 61-105cm Remarks: Weight: approx. 610g Color: Black系 (Black-based)