It depends on what diapers I’m wearing which type fit that I prefer in my plastic pants. For my gauze, contour diapers I wear 1, or 2 of the diapers with a folded, terry bath towel for a soaker and a folded, terry hand for a liner and size large, Haian, plain white, pullon plastic pants. I wear either either the same, or size large, Haian, plain white, snapon, or pullon, plastic pants with Abena M-4’s on the rare occasions that I wear a disposable. When I wear prefolds, either Birdseye or gauze diapers, I use a medium inside a large with a folded, terry hand towel for a liner and size extra large, Haian, plain white, pullon plastic pants with the pants tucked under the diapers around the leg openings so they end up fitting snuggly, as do the large size pants over the contour diapers. Once in a while I will wear the extra large over the contour diapers if I don’t change as soon as I should and there’s a chance of a leak, or the large size over a single contour with a folded terry hand towel for a liner if I’m wearing tighter fitting jeans and leaving the house. Both of these combinations end up with a more blousy appearance with the plastic pants. And then I have blue, red, pink, and baby print plastic pants, in size large, as well if I still want more variety. Wearing 24/7 can get a bit boring without mixing things up a bit. After putting all this down I see that I have far too much time on my hands for me to be putting so much of it into different diapering scenarios! Stay padded, regardless of how your plastic pants fit.