I recently bought the butterfly backpack for my 5 year old, who started pre-kindergarten summer school.  This backpack is well-made and just the right size for her.  It is long and wide enough to accommodate folders, which teachers use to send home assignments.  I use the front pocket to send a snack and drink each day.  The front pocket also has a label on the inside where you can write information. We like this bag so much that we will likely use it into the regular school year.