Large main compartment with slip pocket and two large front and back pockets to stay organized. (polyvore.com)
There is also the big main compartment of the bag that is in the center, surrounded by all the pockets. (pregnancymagazine.com)
This baby changing bag is complete with an expanding main compartment for essentials and internal storage pockets, a changing mat and internal insulated bottle pockets. (littleangels.ie)