The biggest weakness of Pinned diapers is that the pin is the sole thing holding them up. It comes off, the whole damn diaper does. I have partially remedied this. How you ask? By adding more safety pins! With 4 safety pins, my diaper will stay on, stronger than ever. However, this does cause a greater risk of carelessness when pinning them on your diaper and may cause you to poke yourself. It also feels tight in the groin area. But who cares? It's eco-friendly and adorable!