DESC: The Britax Parkway belt-positioning booster has been designed for increased safety incorporating deep torso and adjustable height head support. ‘True Side Impact Protection’, developed by Britax engineers, has been confirmed through rigorous side impact sled testing to better contain a child in dangerous side-impact crashes. The seat shape correctly positions the lap belt over your child’s pelvis while the shoulder belt guide keeps the vehicle belt comfortably away from his/her neck