I bought this backpack for my 11 year old daughter who is in middle school. It was bought to replace the one we bought at the beginning of the school year. All of the students at her school are required to carry a huge binder. It's used to hold all necessary paperwork for all of their classes. Her backpack is pretty heavy and the first backpack just didn't hold up. This one has been great so far. It says it's an adult backpack but this has been a perfect size and fit for my 11 year old who is 5'4". It holds everything she needs and is as comfortable as can be with all she has to carry inside.