I have been wearing XL Girls Goodnights for 6 months now. In all that time I have only had one where the sides split and I weigh 160 lbs. They are snug but I find them very good for fit and no leaks unless one really overloads them wetting (do not aver do no. 2) plus they are great under a skirt going out. I do not like bulky diapers. It makes me feel like wearing a tent for a diaper. Like them small and tight.