DD starts swimming lessons in May. We have the required Happy Nappy swim nappy (thank you NCT sale). When we've been swimming before, we've used a John Lewis swim nappy (like a pair of bikini pants but with a towelling lining). Swim school literature says that they should wear a disposable swim nappy and a HN over the top. Lady on the phone was very confused when I asked whether she could wear a cloth swim nappy instead of the disposable as apparently no one has ever asked before (she kept saying "It's only half an hour, so you might as well use a disposable", which to me is a very good argument for using cloth!). Does anyone here know the answer? Many thanks