Used rear facing, with adjustable head support and a smart base were the foot brace and leg space can be adjusted. (carseat.se)
It contains a firm, adjustable head support for secure and proper support of the baby's head and neck. (thankyourbaby.com)
Stable, adjustable head support Good head support is very important for the first five months until your baby is able to hold its head up unaided. (babybjorn.ca)