The Infantino Flip Advanced 4-in-1 Carrier is a versatile and comfortable carrier that can be used with newborns and older babies. The carrier has an ergonomic seat with adjustable shoulder straps and waist belt to shift weight to the wearer's hips for a more comfortable fit. The carrier also has a facing-in and facing-out design for newborns and older babies. The Flip Advanced 4-in-1 Carrier is a great carrier for parents who want a versatile and comfortable carrier for their baby.