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Britax Marathon - Static

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Quick Overview


The Marathon is a high-performing seat with an adjustable fit, making it a solid choice for your child from the #1 brand in safety technology.

Key Features:

  • Safeguards your child with side impact protection, an impact-absorbing base and steel frame.
  • Safely installs with easy-on/off lower anchors.
  • Easily adjusts with the push of a button – no need to rethread the harness.

was $329.99

Special Price $263.99

Out of Stock

Safety Features:

  • Base with SafeCell Technology designed to compress in a crash, significantly lowering the center of gravity and counteracting the forward rotation of the child seat. 
  • Integrated Steel Bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash. 
  • Energy Absorbing Versa-Tether features a two-point attachment and staged-release tether webbing to slow the forward movement and reduce the crash forces reaching the child. 


The Marathon also incorporates BRITAX Side Impact Protection to contain the child and protect from the most severe types of crashes. 

Convenience Features:

  • EZ-buckle system to keep the harness buckle in a forward position and harness holders that keep harness straps pulled to the sides to make boarding quick and hassle-free.  
  • No-rethread harness that's tangle-free
  • Easy-remove cover that also allows access to belt paths from the front of the seat


Weight Limit:

rear facing:      5 - 40 lbs
forward facing  22 - 65 lbs

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