Took this through 3 countries this month.  I absolutely loved it.  This bag fell in dirt and water and it cleaned up beautifully.  You'd never have known it was also run over by a stroller.

My ONLY two complaints is that I wish it had an outside pocket for a water bottle AND a slot or two for a pen(s).

Otherwise, I filled this up with a change of clothes, ipad, snacks, plane/train tickets and at one point my small purse.  A truly fantastic and functional backpack.