We have the backpack as a diaper bag bought because it was my husband uncomfortable with our old (feminine held) changing bag to walk around and be inspired. Plenty of storage space for anything important. Food, clothes and changing essentials can be accommodated in separate compartments. The backpack is light and the shoulder straps can be adjusted with simple and super fast hand movements so that my husband and I can take turns when wearing without fiddling on the straps every time. The power on the side makes the bottle at all times freely accessible. Only one rain protection I lack ....