A great idea, and they don't look too bad on either. My only gripe is that it is rather loose around the legs compared with the waist, and my little girl is exactly on the 75th centile for length and weight. At 5 months, it was a little big for her (thought I could get away with this size) so I had to buy the smaller one for a short while, and then at 6 months, she fitted into this nappy well, albeit it was slightly loose around the legs. But there's been no pool-fouling accidents so I can't complain too much. I use disposable swim nappies underneath the Happy Nappy and this works well for me.