DetailsMamy Poko's S, XL are designed to suit infants between the ages of 0 - 36 months (depending on the size and weight of your baby). Your baby's comfort is also important. Mamy Poko diapers are designed with breathable cotton like material that allows good circulation. A dry baby is a comfortable baby. With MamyPoko diapers, your baby stays dry longer, needing less frequent changes and yes, less sleep disruptions! 46 Pcs.