The 4th generation BRITAX Marathon Convertible Car Seat achieves revolutionary head safety thanks to BRITAX SafeCell Technology, integrated steel bars and energy-absorbing Versa-Tether that work together to help reduce the risk of injury.

  • Holds a rear-facing infant from 5-40 lb.
  • Forward-facing child from 20-65 lb.
  • Supports children up to 49" tall
  • No-rethread, quick-adjust 5-point harness
  • Multiple buckle and recline adjustments and an easy-remove cover that also allows access to belt paths from the front of the seat
  • Base with SafeCell technology features SafeCells designed to compress in crash, significantly lowering center of gravity and counteracting forward rotation of child seat
  • Energy-absorbing Versa-Tether features staged-release tether webbing to slow forward movement, reducing crash forces reaching the child, and a 2-point attachment to minimize forward rotation while anchoring top of child seat
  • Side Impact Protection distributes crash forces, shields from vehicle intrusion, and contains head and body
  • Body pillow for extra comfort and infant positioning
  • Hand washable fabric
  • Car seat weighs 23.05 lbs
  • 1-year manufacturer's warranty
  • Made in USA
  • Model E9LQ93G


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