Perfect size, safe, travel bag. We used it from day 1- all of our travel documents and important papers for the plane, transportation, and hotels all went into the bag, along with a composition book, wallet and sunglasses.

Later, we added to it all of our guides, tickets, at least 2 water bottles in the outside expandable sides... it actually got to be pretty full and heavy. All of the zippers lock down in hidden parts. We actually hooked the main zipper into the strap's lock, as it had a clip with a rotating lock on it.

We were digging into it constantly for one thing or another, and we were able to get in and out easily and quickly each time- which was important, because we didn't really want to be standing around on the street pulling out $ and other things looking for stuff.

my best friend went to Europe after we did, and she took it with them too. One of the two best things I purchased for this vacation! (second being The Little Black Book- Rome)