Mom's are busy. They need all hands to do more than hold a bag. The Piper diaper bag is a backpack so that is possible.
So many pockets to hold bottles, diapers, and extra outfit or three, wipes, changing pad (which is included), etc. You know there will be an etc. Big pockets, small pockets, insulated pockets. Piper has them all.
Backpack straps can also be removed to carry as a shoulder bag. Shoulder strap can be removed also if you prefer.