I have found with many no name diapers that the sizing is different and that they tend to run smaller so you move up to the next size in them sometimes before you do in the pampers or huggies. Also they don't absorb as fast so if there are gaps in the fit or you have a child that pees a lot but not often as compared to a child that pees a little each time the one will flood the diapers and the other will of course do just fine cause each small wetting gets absorbed.