These soft nappy liners are available in packs of 25 and specially designed to be used inside the Nappy Wrap to complete the Happy Nappy system. After swimming, in the event of any little accidents, the nappy liner makes changing and cleaning much simpler. Simply remove the Happy nappy, undo the nappy wrap and flush away the soiled liner. The fully biodegradable liner saves you money and saves the environment at the same time.