Not everyone needs a hulking rucksack. In fact, many Travel Gadget Team members put a small day pack like this one in their suitcase! WHY? Simple, when we get to our destination, we want to go out and explore! Often a big pack is hot on your back and you really don't need to carry too much on a day trip. Not carrying a day pack means lower security (pick pockets) and you have to deal with wallets, cameras, and water bottles and limiting what your hands are free to do ... like take tickets.
Travel Gadget Pro Tip: Free your self from the burden, toss water in your pack, lock it up with a travel lock, and clip your camera to the pack. NOW you're safe, free, and ready to enjoy your day.