I needed something larger than my small Baggallini for traveling to Europe, large enough to carry a small travel book but not too large. My other requirement was that it have a long enough, adjustable strap to be worn across my body. Reading reviews helped me determine which Pacsafe was the right size. This one worked well and the security features are a plus. Another plus is the light colored lining. I think it has just the right number of compartments, not so many that it is confusing, but enough to separate some items. Some other reviewers complained about the small size of the exterior pockets so I did not count on using them, but they worked for ticket stubs and even my phone. Like others I would be delighted with the addition of a net water bottle holder, but I realized that once you start adding such features the bag grows in size and weight. I managed without it.