Comfort: Travel backpacks put less strain on your body than most other kinds of luggage because their weight doesn't pull on one side of your body. Travel backpacks are designed to evenly distribute their load on your shoulders and hips, making them easy to carry for several hours. Along with the great features of your average backpack, clear backpacks feature even more. Clear backpacks are optimal for amusement parks, festivals, airports, etc as they can prevent you from being double-checked, and save you time in long checking lines, saving much of your precious time.