25B + 1! I am also 5'. It looks cute on me and is very functional. 25 holds a lot, almost as much as a Balenciaga City. When it is full it gets kind of heavy and you will start feeling pressure on your shoulder. I honestly can't imagine wearing a fully loaded 30 on the shoulder without any discomfort. Then that defeats the purpose of getting a 30B.I'm thinking of getting this bag for the fall. I'm 5 foot so debating on sizes. I carry a neverfull mm currently but don't need half the stuff in it all the time. I'm also pregnant due in February so not sure if the size would matter on that. I'm going to use a diaper bag at first but I guess maybe sometimes use my purse instead? What size would you guys recommend?