We do not penalize parents because their child grows into a larger size instead we reward them with much more diapers than; Wal-mart, Sam Club, BJ's and Costco combine! No matter what size your baby wears the quantity remains the same. Get a pack of 30 diapers in all sizes for $5.35 including tax or get a case of 270 in all sizes for $42.45 including tax, 288 diapers number 3 only for $48.15 tax included! At Diapers R Us Outlet Plus your dollar go a very long, oh and if you purchase a case and you baby grows into the next size. No problem just return the packs that have not been open and we will exchange them for the next size free of charge no question asks!