Ergobaby Omni Deluxe

If you want one buckle carrier from birth to preschool, this is the safe bet. The Omni Deluxe runs from 7 to 45 pounds with no infant insert, and it offers all four positions: facing in, facing out, hip and back. The mesh body is the point of this version, keeping both of you cooler than solid fabric on a warm walk, and the lumbar support on the waist belt helps once your baby is heavy enough that the hips need to take over from the shoulders. The many straps and adjustments take an afternoon to learn, and a newborn may need the seat narrowed carefully so the fabric reaches knee to knee without forcing the legs too wide.