Ergobaby's Four Position 360 Carrier offers you options for carrying your baby safely and comfortably. Choose between front-inward, back, hip and front-outward placements. The carrier features a structured bucket seat to support your baby in the recommended carry position (with the knees slightly above the hips) and is designed with buttons for an adjustable width that grows with your little one. You can use the carrier from day one, but for infants younger than 4 months, purchase the Infant InsErgobaby Four Position 360 Carrier-Kids