ERGOBaby Baby Carrier Newborn Insert Grey works with any ERGOBABY Carrier and must be inserted to support growing babies ranging from newborns to 4-5 months. The NEW ERGOBABY Infant Insert is designed so you can safely carry your baby form bith in the Ergobaby Carrier. The improved design is more intuitive and easier for parents to use. The proprietary design keeps pressure off a baby’s developing sacrum. The Infant Insert also provides the necessary head and neck support for comfortable carrying from day 1. The Infant Insert snaps around the baby, can be adjusted as needed and placed with ease inside any ERGOBABY Carrier. Cozy and protected, your baby will be perfectly cradled and cushioned.