Love this bag. I used this bag with my twin babies. They have 2 large zippered areas & 1 smaller zipper on the front. I can fit my wallet, small sanitizer, phone & keys in the front zippered pocket comfortably. One large zippered area comes with the changing pad & the other has 4 pockets & one larger pocket. My babies did end up peeing on the changing pad when they were smaller, and it was super easy to clean up. Just some sanitizer on a paper towel to dry it until I was able to get home & throw it into the washer. I’ve even washed the actual bag & it was still in perfect condition. I recommend washing with cold water and drying it on low or medium heat. The main part of the bag can fit so much. You can fit about 4-6 diapers or some baby wipes & Aquaphor or 2 Dr Brown bottles or 1 Philips advent bottle or 2 pants & 2 shirts into each of the smaller pouches inside. It also has smaller hooks on the side that can be attached to your stroller. I would recommend not making it too heavy bc it can & does fall off. Maybe adding another button would help distribute the weight but it does hold a good amount of weight as is. I still use it now that my twins are toddlers, and sometimes throw my laptop into either of the larger zippered areas.