The Original Baby Bjorn carrier thats been pleasing families for years just got a cool upgrade, and its pretty great! With the Baby Bjorn One Air, you can carry your little one from birth to age 3 without the need for an infant insert. It features four different carry positions: newborn, facing in, facing out, and back carry, and the wide seat ensures an ergonomic and hip healthy alignment for the baby. You will appreciate the mesh fabric, which allows airflow, padded shoulder straps, and supportive waist belts. Carrying Positions: Facing Inward, Facing Outward, Back Carry Baby Size: 8-33 lbs (0-3 years).