Osprey Farpoint 40 M/L 

"This is a nice looking bag and can fit many items (especially if you roll them up in small bundles). It's a perfect carry-on size and is lightweight. The front pockets a good size size and help me to organize my small items and jewelry well. My biggest complaint about this bag is the waist harness - with most similar backpacks the harness and straps can be hidden easily, but the zipper section is awkward and the velcro bottom to hide the flap is cheap and ugly. In addition, I'm a small person (5' 2") and the large harness is uncomfortable and awkward looking on me, I usually end up flipping it around the front and clasping it together there since I cannot get it out of the way otherwise. The straps, however, are just fine. In short, I would recommend this bag because it's great for the cost, but it might be better for a slightly larger person (or with a mild redesign to the waist harness)."