My girlfriend and I bought two of these daypacks the week before our trip to the Arizona desert. The bag was big enough to fit a Canon 5D, Canon 24-70mm f/2.8L, Canon 70-300mm f/4.5 - 5.6, 16-35mm f/2.8L, Canon Speedlite 580 and diffuser, wide angle lens hood, two batteries and their charger, 3 filters and a monopod. It was comfortable, and well constructed. The largest compartement is located above the camera compartment. We found it useful for just about everything ranging from maps, paperwork, passports, books, and waterbottles. The pocket on the top flap is fairly narrow and not very deep. We used it for our travel papers and maps most the time. The two side pockets are fairly deep and wide and can easily carry 2 filters in each. We found them useful for make-up and keys mostly but they were big enough to fit just about any small items. The clips are plastic which felt like a minor drawback but otherwise, the daypack is very well constructed and tolerated anything we threw at it. I would certainly recommend this pack to anyone looking to take their camera on a trip.