The KeyFit 30 infant carseat has an innovative LATCH management system, easy belt routing and a spring loaded leveling to make the infant carseat installation process easy. The one-pull, centrally located tightening strap has made tightening the LATCH attachment simple. The KeyFit base also has wide belt routing loops with a built in belt locking system if the vehicle does not have LATCH. Leveling the seat is easy with a spring-loaded leveling foot and easy to read liquid, level indicators on both sides of the base. The harness has one-pull tightening & loosening for quick harness fitting. The thickly padded infant insert gives extra support for a smaller baby around the head, neck, back & bottom. The carrier shell is lined with energy absorbing foam. Conforms to new FMVSS 213.