The Britax Frontier 85 combination booster car seat has a head restraint with energy-absorbing cushions to protect and keep the head, neck and spine aligned. It has a Harness Ultra Guard System in place to prevent sudden forward movement. This 5-point harness booster seat has an energy-absorbing base to absorb impact forces. The Versa-Tether along with a 2-point attachment and a staged-release tether effectively slows down the forward movement and rotation. It also absorbs the impact energy. This belt-positioning booster seat is LATCH compatible and has color-coded vehicle belt guides to enable easy installation in your car. It has a washable cover for easy maintenance. It has built-in cup holders to keep beverages handy. This booster car seat is certified safe for aircraft travel in the harness mode. It can be easily converted into a booster seat as your child grows.