My LO is two in a couple of months and is currently in size 6 pampers active fit nappy pants, she is 2 stone and tall for her age(shes in 3-4 for trousers). They are starting to look a little snug though, we can only use the pull up style ones as they fit the best and dont move about when moving lots. I also prefer these pampers active fit pants as they absorb a lot more than your basic supermarket pull up ones which I hate using! Are there any other recommendations, or are these ones still okay for her weight and age?