You may have to buy another strap to use the Noe as a messenger style bag across your body. There's a mono adjustable strap that you can purchase separately. I was just looking at the Petit and to me that was plenty big to hold all of my accessory cases (about 4 or 5). I'm 5"3. I think the large Noe is nice but seems more like a tote bag - you can carry large notebooks, jackets, etc. in it. Another TPFer had a Noe with pictures showing how large the Noe was. Check the Noe club in the Clubhouse section.