I originally bought the forma back pack after reading many reviews. I am an overpacker, and the forma was too small for me. This bag is perfect. I can fit two sets of clothes, a muslin blanket, two burp cloths, two bibs, two pacifiers in the nuk holder, the skip hop pronto changing station with 4 size 2 diapers, Huggies wipes, a hat, a hoodie, and an avent formula dispenser all in the main compartment with room to spare on the top. I can fit my son's wide advent bottles in the insulated pockets on
the side. This bag is perfect. The only downside is the changing pad that comes with it. It is very thin. Get this bag if you overpack!