These are the best nappies I have ever used. I am a mum if 5 and have tried them all. It is incredible how much less bulky they are when compared to other nappies. This means they are lighter to carry around & better for the environment. My children, despite having extremely sensitive skin hardly ever get nappy rash wearing these nappies and the only time they leak is if they wet the nappy when it is already soiled (so yes pull over the car as soon as you smell it!) but every nappy I’ve ever used has that problem.