Baby Bjorn's Synergy Baby Carrier combines the light and breathable 3D mesh material of the Baby Bjorn Air with the comfortable back support of the Baby Bjorn Active. This lightweight baby carrier is made from a soft and breathable 3D mesh material that allows greater airflow, keeping you and baby cooler. You can use the Baby Bjorn Synergy for newborns (minimum 8 lbs., with the safety strap fastened) as well as older babies (maximum 26 lbs.).