JOYFUL BABY DIAPER EXTRA LARGE 16 KG PLUS, PACK OF 24 Joyful diapers are 5 Star German Derma test Certified. Joyful Diapers have ultra-absorbent layer, absorbent particles that quickly draws in wetness away from your baby and distributes the fluid evenly inside the core of the nappy in a matter of seconds. It has flexible side tapes that avoids rashes and eases movements. This ensures that the baby stays dry and comfortable!