Britax Marathon ClickTight Convertible Car Seat


Regular price $299.99


As your child grows from baby to toddler, the Marathon ClickTight convertible car seat. easily transitions from rear-facing to forward-facing. With ClickTight, you can install with confidence, every time. Simply open, thread & buckle, click it closed. Plus, easy-read level indicators and a quick-push recline help you find the proper angle for your vehicle and most comfortable fit for your child. Full body side impact protection surrounds the head, neck and torso. A steel frame and crumple zone help absorb crash energy. And, the patented V-shaped tether helps slow forward movement, so you can travel with peace of mind. Quickly and easily adjust the 14-position harness and headrest with one hand for the perfect fit.

Products and components are subject to change without notice and may vary from images depending on the model.

*Recommendation – Britax strongly recommends that children ride rear-facing to the highest weight or height specified


ClickTight Installation

Install with confidence 3 easy steps: open, thread & buckle, click it closed

Side Impact Protection

Energy-absorbing shell surrounds your child’s head, neck, and torso

SafeCell Technology

Acts as a crumple zone, absorbing crash energy to help keep it away from your child

High Strength Steel Frame

Reinforces the seat structure to help keep it stabilized

V-Shaped Tether

With staged-release stitches helps slow and reduce forward movement during a crash

14-Position, Quick-Adjust Harness & Headrest

Create the perfect fit as your baby grows

7-Position, Quick-Adjust Recline

Helps you find the most comfortable fit for your child and the best fit for your vehicle

Easy-Read Level Indicators

Help you find the correct recline angle for your vehicle

Removable Cover

Easy cleaning without taking off the harness.

Plush Foam Padding and Fabrics

For premium comfort and a quiet ride



Available with High-Performance Fabrics

Naturally safe to machine wash & dry
Cool Flow
Ventilated mesh keeps baby cool
Dual Comfort
Breathable, wicking fabric keeps baby cool and dry

Product Specs

Child Weight5-65 lbs

Product Dimensions23" x 18.5" x 23.6

Seat Area Depth/Width10.5" / 11.5"

Shoulder Width16"

Harness Slot Heights8.35"-19.4"

Buckle Strap Depths5.25" - 7"

Rear-facing Harnessed Weight5-40 lbs

Rear-facing Harnessed HeightLess than 49"

Forward-facing Harnessed Weight20-65 lbs

Forward-facing Harnessed HeightLess than 49"

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