pampers.
by the way, how long do you let it stay?
never had an issue with pampers. maximum of 4 hours only, unless soaked earlier and by then we changed. my practice was, anytime I noticed that there's something, we changed ASAP, rinse the genital area with tap water + soap (safeguard that was) and pat dry with towel. Keep it open for an hour or so, before putting a new one. It worked for us, hopefully it will for others :-)