Well, I have several items made by Maxpedition, and I love them all. I currently have the Falcon pack, and like it, but it is a little small for my frame. I am 6'4" and 235#, and the Falcon is a little narrow. It is however very adaptable, and sounds like what you are looking for. There is an opening for a hydration bladder, and many pals webbing locations on the pack for expanding with all kinds of gear. It will easily carry my laptop, and there is still room left over for set of clothing, or what ever you want to through in it.