The Biddykins newborn size (2.5-5.5kg) all-in-one nappy is very convenient and easy to use. Use the rise snaps on the front of the nappy to adjust the size. The nappy comes with two inserts in: one bamboo insert is sewn in and flaps open to assist with drying. A second loose insert is made from bamboo with a staydry top layer which keeps baby's skin feeling dry. The nappy is lined with staydry fabric and had single leg gusset elastics. This nappy does not include an umbilical cord snap down.