Just a FYI regarding the disp swim nappies. My school has a reusable swim nappy only policy. Its because those disp nappies leak small fibres into the water once they are soaked and it clogs up pool filters and can even be breathed into lungs. Very dangerous.

I totally understand the pain in the butt of having to buy several different sizes of reusable swim nappies only to have them use them for a few months then grow up a size, so its my pleasure to pass on my pair to you crumpet, no thanks or anything needed