Fits from ±4½kgs to ±13kgs * Nothing needs to be worn beneath the swim nappy * You can fit additional sun protection or flotation clothing (e.g. Polyotter®) over the swim nappy *Only fit the swimming costume when you reach the pool/sea - otherwise you may have a wet car seat! *If there is a poo in the costume, simply rinse off the mess, and pop the costume into the washing machine (cold wash). ** Note that the costume should be line dried, and not left in the sun unnecessarily due to the heat sensitive waterproof laminate. Do not tumble-dry.