I had the bag for a couple of months now and I have used it mostly as hand carry luggage in the planes and as day time mommy bag/purse when traveling. I could fit my child's diapers, changing pad, wet tissues, and two water bottles, and would still have space for three jackets and two kids' blankets just in case the weather becomes cooler. One time the bottled water spilled in the main compartment and wet everything inside except for those in the front and back/side pockets. I really like the bag as it is not only chic but also spacious for my essentials. The only downside is the bag itself is a bit on the heavy side and the straps are a bit bigger for my built (US size 8 at 150cm.) Surprisingly though, the backpack straps do distribute the weight evenly leaving less strain on my shoulder and back after continued use.