Britax Marathon G4.1 Convertible Car Seat, Onyx

The marathon convertible car seat is an excellent choice for getting your family where they need to go safely and comfortably. Safe cell impact protection surrounds your child in safety components that work together to protect well beyond the established federal safety standards. And complete side impact protection shields your little one in a deep protective shell designed to absorb crash forces and protect from debris. A car seat works best when it provides the right fit so the marathon comes with the quick-adjust, 10-position harness and 2-position buckle to keep up with your growing child.