This table was made when Pampers size 8 could handle a maximum hip size of 96.5 cm, now it's only 96 cm.
Some manufacturers use very flexible materials in the side cuffs. Some diapers thus offer an enormous elasticity, even beyond the recommended range.
Minimal scope - Recommended scope (red):
A diaper is limited due to the size in their usability. A size 6 diaper will not normally fit a 12 month old baby. The minimum amount indicates when a diaper can be used. At this circumference, the cuffs are stretched only slightly, so that the diaper just barely fits.
Up to the recommended hip size, the diaper fits perfectly. She is not too tight and does not pinch.The margin between minimum and recommended scope is the optimal range of use.
Maximum scope (blue):
To the maximum extent, the fit gets worse and worse. At the maximum extent, the diaper can barely be closed. The cuffs then only withstand the loads for a short time. This value shows how stretchy the cuffs are and that a diaper can be used in larger sizes if necessary.
Whether the diaper still fits well with larger sizes is also heavily dependent on the stature of the child.The maximum hip size of diapers is just a guide. Individual factors additionally influence the fit. These include especially the height and leg circumference.
The source of this data is bestewindel.com, a german website.