I bought this to bring to my daughter's daycare when she was a few months old.  Easily holds a few diapers, a bag of wipes and a paci in the front pocket.  The main section held bottles, a change of clothes and even a toy/lovie with plenty of space.  Now that she is older, we use it to take some toys with her when she goes and her lunch.  She looks pretty adorable "wearing" it on her back.  Love the mouse!