I'm 5 feet tall and most bags just don't fit or have features that I like. This one can be ordered in multiple sizes. I don't do any overnight hiking but like to carry extra jackets and food for long day hikes. This is perfect. My back doesn't sweat and it is very comfortable.

The one slighty larger than this one is from what I can tell exactly the same except for an extra compartment at the top. I ordered both and returned the larger one because I don't like the way it hit the back of my head. If you do need the room for extra gear it may be a good solution for you.