Approximately 31cm x 23cm x 8.5cm A4 files will not fit. This is a fashion bag styled like a school bag. It has a shoulder strap, so it can be used in 3 ways: as a handbag, shoulder bag, or backpack. It has been used once for cosplay photography. Please note that there are creases like the ones on the right side of the first photo. Please understand that this is a used item before purchasing.