---
product_id: 35524119
title: "Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color"
brand: "britax e9lx15k"
price: "$1338"
currency: NZD
in_stock: true
category: "Baby Product"
url: https://www.desertcart.nz/products/35524119-britax-e9lx11a-marathon-g4-1-convertible-car-seat-onyx-color
store_origin: NZ
region: New Zealand
---

# Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color

**Brand:** britax e9lx15k
**Price:** $1338
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color by britax e9lx15k
- **How much does it cost?** $1338 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/35524119-britax-e9lx11a-marathon-g4-1-convertible-car-seat-onyx-color)

## Best For

- britax e9lx15k enthusiasts

## Why This Product

- Trusted britax e9lx15k brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

The Marathon Convertible Car Seat is an excellent choice for getting your family where they need to go safely and comfortably. SafeCell Impact Protection surrounds your child in safety and Complete Side Impact Protection shields your child in a protective shell designed to absorb crash forces and protect from debris. A 10-position, quick-adjust harness makes it easy to ensure the proper fit as your child grows. Plush foam padding in the cover, buckle pad, shoulder pads and an infant positioning pillow offering extra comfort while achieving proper harness fit for small infants Easy-remove cover for cleaning convenience Dimensions (L x W x H): 18.50 x 26.00 x 21.00 Inches

## Features

- The Marathon Convertible Car Seat is an excellent choice for getting your family where they need to go safely and comfortably. SafeCell Impact Protection surrounds your child in safety and Complete Side Impact Protection shields your child in a prote
- 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 movemen
- 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 mi
- SafeCell impact-absorbing harness keeps your child's chest clip correctly positioned and absorbs energy in the event of a crash Quick-adjust, 10-position harness and 2-position buckle allows you to easily move the harness upward and buckle outward fo
- Tangle-free, 5-point harness prevents the straps from twisting making it easier to load your child into the seat and ensuring a safer ride 3 recline positions for your child's comfort and safety EZ-buckle system keeps buckles and straps out of your w

## Images

![Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color - Image 1](http://ecx.images-amazon.com/images/I/41zWn5c2Q0L.jpg)
![Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color - Image 2](http://ecx.images-amazon.com/images/I/413qUrDTZaL.jpg)
![Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color - Image 3](http://ecx.images-amazon.com/images/I/51CoLsmwNcL.jpg)
![Britax E9LX11A Marathon G4.1 Convertible Car Seat Onyx Color - Image 4](http://ecx.images-amazon.com/images/I/41l%2BbFBFd5L.jpg)

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**Shop now:** [https://www.desertcart.nz/products/35524119-britax-e9lx11a-marathon-g4-1-convertible-car-seat-onyx-color](https://www.desertcart.nz/products/35524119-britax-e9lx11a-marathon-g4-1-convertible-car-seat-onyx-color)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-18*