What is the best insert to use for cloth diapers?

I am going to be using chinese prefolds but I want to know what is the best insert to put in with that if I need it to keep my baby feeling drier? I heard about one a few months ago and was sure I would remember and now I don't. I want something that wicks away the wetness to help prevent diaper rash and help keep my baby feeling comfortable. Any suggestions would be great thanks! (I used cloth diapers on my first kid but I had trouble and hope this small change might help)