How do I adjust the headrest on the BABYBJÖRN Baby Carrier Original?

All BABYBJÖRN Baby Carriers have a headrest that should be used until the baby's neck muscles are strong enough to hold his/her head up. Adjust the headrest by tightening or loosening the short side loops on the upper part of the baby carrier. Check that your child has space around the head to keep his/her air passages free.