Hi Mara&Johnny,

I use Huggies & my DS grew pretty quickly & I agree with Lulu, make sure all the frills on the outside are out. I put him into the next size (infants I think from memory they should be 6 - 8kg??) when he was about 4-5 kgs because I was getting too many leaks. At first I wasn't sure because I too thought they were too big but truly it did stop my leaking problem. When ever the nappy's start to leak I find when I upgrade to the next size up it always stops even though sometimes they seem to big. Goodluck