Everything is great about this backpack expect for the spot to hold your water bottle it’s too small for any reusable bottles I own so I just put them in the large compartment of the bag. I’ve been using this bag primarily as a diaper bag but I love that the pockets unzip to lay the bag flat and all of the different interior pockets make this bag great for organizing. I am a petite women and this is the first “large” backpack I have ever felt comfortable carryingI use this as my “personal item” when I travel. I am able to fit my usual travel essentials: 16 inch laptop, iPad, large book, NC headphones, two bags of snacks, complete change of clothes, sandals, water bottle, charging cables, spare batteries, pain killers, etc. The bag has two large compartments and several well placed smaller pockets that makes organizing all of this stuff easy. It fits under the seat of a smallish regional jet nicely. The two valuables pockets on the back are perfect for stowing a cell phone and wallet. Before I bought this bag, I used a Pacsafe bag of comparable size. I liked it but it only had one big pocket. The second large pocket of this Dakine bag makes a big difference when it comes to accessing items when needed.I bought it to use as an alternative to a carry on suitcase. The size is great and has lots of organizing pockets. Some are hidden for security. I haven’t used it yet, but I think it’ll be great. I took a star off because it’s a little heavier than I anticipated and the zippers don’t open and close as smoothly as I’d like. Not a deal breaker. Also I ordered the green and the color combo is different than the picture. The one I received has straps the same color as the backpack. A pleasant surprise for me, but fyi. I’m not sure if there are variations out there.me agrado todo para viaje lo mejor que compre