The bra - style elastic adjustments are easy to adjust from newborn size all the way up to toddler so there's no need to buy different sizes of diapers. (thefashionablehousewife.com)
It is very important to use the correct size of diaper cover for your baby. (comfybummy.com)
The overall size of the diaper bag is very important too. (babieslounge.com)