The horizontal zipper in the back panel of the manduca baby carrier provides for a simple yet ingenious feature: opening the zipper allows the back panel to unfold and extend. The resulting integrated back extension makes sure that for babies at all ages their backs are always perfectly supported. Reason enough to have had the back extension patented.
But do you know when to unzip the back extension and when it is better to leave it closed? Here, you find an overview on the possibilities and benefits.