Hard question! I bought the thing over ten years ago, using it as a field briefcase and I have no idea of what Eagle Creek called it then.. I found the backpack straps to be quite useful in the field and other applications.<br><br>It is sized so that it would take a current laptop computer, although it does not have the padding that such specific models usually have. It don't think it says "steal me" to most bad guys.<br><br>Basically, what works is a bag that will hold about 1500 cu. in., has about three compartments and some organizer slots, and can be caried by the handle, but once you have found the convenient phone booth, converts to a backpack for those situations where you have to do some serious walking.<br><br>It blends into the office environment, but is quickly adaptable to other uses.