Disclaimer: I am in LOVE with and OBSESSED with Anello. I currently use this as a diaper bag but I wanted something I could use as a normal backpack in my post-babies life phase. This backpack fits so much. The two side pockets don't have elastic or anything so there is a chance for water bottles to fall out, but I actually like it because I end up stuffing other things in them along with the water bottles, like my phone or keys or tissue. I kind of wish the inside had more compartments, but realistically when I use this as a normal backpack and not a diaper bag, I probably wouldn't need all the compartments. The side zipper is AMAZING and has been so helpful to easily pull out my wallet or changing pad/diapers/wipes instead of opening the top and sifting to the bottom of the bag. Just used this to travel around Asia with a 1 yr old and 2 yr old for two weeks and it was perfect.