Britax Marathon ClickTight Car Seat in Rio

Britax® Marathon® ClickTight™ Convertible Car Seat

Rear-Facing | 5 – 40 lbs; Forward-Facing | 20 – 65 lbs

The Marathon ClickTight Convertible Car Seat brings you remarkable convenience without compromising on your child’s safety. With the ClickTight Installation System, everyone can install with confidence. SafeCell Impact Protection surrounds your little one in safety and our Complete Side Impact Protection shields your child in a protective shell designed to absorb crash forces and protect from debris.

Safe and Secure

• SafeCell Impact Protection is an integrated system of safety components that work together to protect your child well beyond the federal safety standards. Including an Impact Absorbing Base, Tether and Harness, an Impact Stabilizing Steel Frame, and Complete Side Impact Protection, SafeCell means your child is surrounded in best-in-class safety.


• SafeCell Complete Side Impact Protection surrounds your child in a deep protective shell designed to absorb crash forces and shield your child from debris.


• SafeCell Impact Absorbing Base Compresses to absorb crash energy and counteract forward movement keeping your child clear from the seat in front of them.


• SafeCell Impact Stabilizing Steel Frame gives you peace of mind knowing there is strength where you want it most, through the spine of the car seat reducing forward flex and at the connection points to the vehicle.


• SafeCell Impact Absorbing Tether minimizes potential seat rotation with a unique two-strap design and slows forward movement with Britax's patented rows of stitching that “give-way” one at a time.


• SafeCell Impact Absorbing Harness slows forward movement in the event of a crash.

Fit and Comfort

• Quick-Adjust, 12-Position Harness and 2-Position Buckle allows you to easily move the harness upward and buckle outward for a comfortable, secure fit as your child grows.


• 7-Position Recline with Automatic Level Indicator adjusts for your child’s comfort while ensuring the best installation angle for your vehicle.


• Plush Foam Padding in the cover, buckle pad, shoulder pads and removable pillow surrounds your child in comfort at every touch point.

Smart and Simple

• ClickTight Installation System ensures that everyone can install the car seat securely and confidently by just buckling the seat belt.


• EZ-Buckle System keeps buckles and straps out of your way when placing your child in the car seat.


• Easy-Remove Cover for cleaning convenience.

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