To observe fit, pick up your baby’s legs after putting the diaper on and observe how it fits around the legs and bottom. Is it snug? If you can see “air” between the diaper and their skin, then you need to refine the fit. Trying a smaller snap setting and fasten the tabs snugly. When you child stands up, notice how the insert or soaker is positioned relative to the back elastic. If the insert or soaker is higher than the back elastic, lay your child down, release the tabs, pull the diaper slightly towards the front and refasten the tabs. If you notice that the front of the diaper is positioned low over your baby's thighs or that it is difficult to fasten the diaper around your baby's waist, try using a larger snap setting.

This will increase the rise of the diaper and improve overall fit. Remember, babies change shape frequently as they grow up. You may have times when your relatively young baby is using their one-size diapers on the largest setting. The same child may be on the medium setting several months later due to increased mobility.