---
product_id: 654837030
title: "RodiFix S i-Size, High Back Booster Seat, 3.5-12 Years (100-150 cm), Child Car Seat, 3 Recline Positions, Adjustable Height/Width, G-Cell Side Impact Protection, AirProtect, Tonal Black"
brand: "maxi-cosi"
price: "A$580"
currency: AUD
in_stock: true
reviews_count: 8
category: "Maxi Cosi"
url: https://www.desertcart.com.au/products/654837030-rodifix-s-i-size-high-back-booster-seat-3-5
store_origin: AU
region: Australia
---

# Adjustable height & width i-Size ISOFIX certified safety 3 recline positions for comfort RodiFix S i-Size, High Back Booster Seat, 3.5-12 Years (100-150 cm), Child Car Seat, 3 Recline Positions, Adjustable Height/Width, G-Cell Side Impact Protection, AirProtect, Tonal Black

**Brand:** maxi-cosi
**Price:** A$580
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate every ride with safety, style, and comfort that grows with your child!

## Quick Answers

- **What is this?** RodiFix S i-Size, High Back Booster Seat, 3.5-12 Years (100-150 cm), Child Car Seat, 3 Recline Positions, Adjustable Height/Width, G-Cell Side Impact Protection, AirProtect, Tonal Black by maxi-cosi
- **How much does it cost?** A$580 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/654837030-rodifix-s-i-size-high-back-booster-seat-3-5)

## Best For

- maxi-cosi enthusiasts

## Why This Product

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

## Key Features

- • **Adaptive Growth Design:** Height and width adjust with a single press, growing seamlessly with your child from toddler to pre-teen.
- • **Custom Comfort Control:** Three one-hand adjustable recline positions let your child choose between scenic views or cozy naps on the go.
- • **Eco-Chic & User-Friendly:** Made with 100% recycled fabrics, machine washable covers, and no-armrest design for quick, independent buckling.
- • **Unmatched Safety Standards:** i-Size certified with ISOFIX for effortless, rock-solid installation ensuring your child’s protection in every journey.
- • **Next-Level Side Impact Protection:** G-CELL tech plus AirProtect cushions reduce head injury risk by 20%, shielding your child from side collisions like a pro.

## Overview

The Maxi-Cosi RodiFix S i-Size is a forward-facing high-back booster seat designed for children aged 3.5 to 12 years (100-150 cm). Certified to the highest EU i-Size safety standards, it features ISOFIX installation, 3 recline positions, adjustable height and width, and advanced side impact protection with G-CELL and AirProtect technology. Lightweight and easy to install, it uses sustainable, machine-washable fabrics and supports independent buckling, making it a durable, safe, and eco-conscious choice for growing kids.

## Description

You can be at ease knowing your little one is safe and relaxed on every journey you take. Designed to the highest safety standards, RodiFix S i-Size is a foward-facing child car seat that offers multiple recline positions and is adjustable in height and width allowing the seat to grow with your child. Your child can safely sit back, relax and enjoy every ride they take from 3.5 up to 12 years old. Built to today’s highest i-Size safety standards, the car seat features extra high wings on both sides for increased side impact protection. As 1 in 4 collisions are side-on, the patented AirProtect side protection safety cushions in the headrest are designed to further protect your child and reduce the risk of head injury by up to 20%. In addition, the improved G-CELL Side Impact Protection is engineered to spread the forces of an impact away from your child, to reduce injury especially around the head, neck and shoulders. This long-lasting car seat will protect your child for more than 8 years. As your little one grows from a toddler to nearly a teen (3.5 - 12 years old), this car seat will comfortably carry them through their childhood adventures. You can’t stop your child from growing up so fast but you can keep up with them, as the seat’s adjustable design grows both in height and width. With no armrests to get in the way, buckling-up is always quick and hassle-free. So easy in fact, independent children can buckle-up themselves. Just press a button on the back of the headrest to adjust the height as they get taller, and easily move the intuitive side wings out as they get bigger. Napping in a car seat is often uncomfortable for children as their unsupported heads nod forward - not so with this Maxi-Cosi car seat! This car booster seat comes with 3 relaxing recline positions, giving children the choice to either sit up straight and watch the world go by, or recline back and nap comfortably during the journey. The AirProtect Safety Cushions are not only protective, they are soft too and provide cushioning for little sleepyheads. In addition, the backrest can be extended in 10 different positions to enhance your child’s comfort and protection on every adventure, year after year. RodiFix S i-Size is designed to be easy. With ISOFIX connectors it’s easy to install the car seat into your vehicle. For safe and correct installation of the car seat, push out the ISOFIX anchorages completely and slide these into the ISOFIX connecters in the seat of your car. The base should click from both connectors, followed by an extra push against the seat and you are ready to go!

Review: Great comfy seat - Great quality seat with adaptable sides. I love the way they widen as you extend the seat. It’s obvious it is going to last for a long time with these features. Seat was easy to install, a couple of clicks and it’s in. The fabric is nice and it looks good in the car. Most importantly, it feels safe and our son is comfortable and happy in it. We had another Maxi Cosi seat and had a problem with the fabric coming away. There is no indication of this problem and it looks like Maxi Cosi have sorted the problem….top marks! All in all, a very sturdy seat with a great reputation which gives me confidence when I’ve got our son in the car. Couldn’t ask for any more than that 👍🏼
Review: Very sturdy and easy to use - Very happy with this child seat. It was simple to assemble and easy to install and adjust (the side wings are very intuitive). Instructions are given but I did not need them. My child finds this car seat very comfortable and prefers this over her other child seat. She struggles with buckling the seatbelt on her other seat but she has no issues bucking the seat beat with this child seat. The build quality is excellent, it feels extremely safe and sturdy and all functionalities are easy and intuitive to use. It is extremely light so is easy to move from car to car if required and Iso fixes are easy to attach and detach. I have used many car seats over the years and this is up there as one of the best all-rounders. Highly recommended.

## Features

- GROUP 2/3 CAR SEAT: an i-Size certified, forward-facing kids car seat that is quickly & effortlessly installed in your car - suitable from 100 - 150 cm, 3.5 - 12 years (approx. 15 - 36 kg)
- I-SIZE SAFETY: this ISOFIX car seat is designed and tested according to the highest EU safety standards (ECE R129); Using ISOFIX installation, this car seat promises your child safe travels
- 3 RECLINE POSITIONS: a reclining car seat with 3 different, comfortable positions for a great view out of the window when sitting up or for a relaxing recline - all adjustable with one hand
- G-CELL SIDE IMPACT PROTECTION: an integrated safety system, providing expert protection from side impact as it spreads the forces away from your child reducing injury to the head, neck and shoulders
- AIRPROTECT SAFETY CUSHIONS: the AirProtect technology in the headrest is designed to absorb the force of impact, providing the best side protection possible and reducing risk of head injury with 20%
- HEIGHT & WIDTH ADJUSTABLE: the child seat’s adjustable open design alters in both height and width, so that your child will always be safe & comfortable, with just one press of a button
- QUICK & EASY BUCKLE UP: with no armrests to get in the way, buckling-up is always quick and hassle-free; So easy in fact, that independent children can buckle-up themselves!
- 100% RECYCLED FABRICS: the sustainable car seat cover is designed using Eco Care, which means the cover consists of 100% recycled fabrics; It can easily be removed and is machine washable
- ACCESSORIES: you can combine the RodiFix S i-Size with a matching and machine washable summer cover to keep your child cool, dry and comfortable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFWLJSTG |
| Age Range Description | Kid |
| Best Sellers Rank | 7,875 in Baby Products ( See Top 100 in Baby Products ) 100 in Car Seats (Baby Products) |
| Brand Name | Maxi-Cosi |
| Colour | Tonal black |
| Country Of Origin | Portugal |
| Customer Reviews | 4.5 out of 5 stars 595 Reviews |
| Installation Type | Seat Belt |
| Item Dimensions D x W x H | 80D x 51W x 79H centimetres |
| Item Weight | 6.1 Kilograms |
| Item height | 79 centimetres |
| Manufacturer | Dorel Juvenile |
| Material Type | Foam |
| Maximum Weight Recommendation | 36 Kilograms |
| Minimum Weight Recommendation | 15 Kilograms |
| Orientation | Forward Facing |
| Rear Facing Maximum Weight | 36 Kilograms |
| Unit Count | 1 Piece |

## Product Details

- **Brand:** Maxi-Cosi
- **Installation type:** Seat Belt
- **Material:** Foam
- **Colour:** Tonal black
- **Orientation:** Forward Facing
- **Product dimensions:** 80D x 51W x 79H centimetres
- **Item weight:** 6.1 Kilograms
- **Maximum weight recommendation:** 36 Kilograms
- **Minimum height recommendation:** 100 Centimeter Kilograms
- **Minimum weight recommendation:** 15 Kilograms

## Images

![RodiFix S i-Size, High Back Booster Seat, 3.5-12 Years (100-150 cm), Child Car Seat, 3 Recline Positions, Adjustable Height/Width, G-Cell Side Impact Protection, AirProtect, Tonal Black - Image 1](https://m.media-amazon.com/images/I/615HNCsYNpL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great comfy seat
*by B***E on 24 April 2023*

Great quality seat with adaptable sides. I love the way they widen as you extend the seat. It’s obvious it is going to last for a long time with these features. Seat was easy to install, a couple of clicks and it’s in. The fabric is nice and it looks good in the car. Most importantly, it feels safe and our son is comfortable and happy in it. We had another Maxi Cosi seat and had a problem with the fabric coming away. There is no indication of this problem and it looks like Maxi Cosi have sorted the problem….top marks! All in all, a very sturdy seat with a great reputation which gives me confidence when I’ve got our son in the car. Couldn’t ask for any more than that 👍🏼

### ⭐⭐⭐⭐⭐ Very sturdy and easy to use
*by P***U on 19 April 2023*

Very happy with this child seat. It was simple to assemble and easy to install and adjust (the side wings are very intuitive). Instructions are given but I did not need them. My child finds this car seat very comfortable and prefers this over her other child seat. She struggles with buckling the seatbelt on her other seat but she has no issues bucking the seat beat with this child seat. The build quality is excellent, it feels extremely safe and sturdy and all functionalities are easy and intuitive to use. It is extremely light so is easy to move from car to car if required and Iso fixes are easy to attach and detach. I have used many car seats over the years and this is up there as one of the best all-rounders. Highly recommended.

### ⭐⭐⭐⭐ Classy
*by A***A on 23 June 2023*

First of all, the car seat arrived quicker than expected which is a bonus. It was properly packed and sealed. It's super easy to install you don't need an instruction. I love the design, it’s nice and sleek very light and elegant looking and not bulky compared to some car seats on the market but meets all the safety requirements which is the most important thing in choosing the right car seat for our daughter. Our daughter still gets to sleep on a longer journey so we found recline positions to be very useful. In my opinion only based on our super active girl who finds hard to sit still except when sleeping it’s more suitable for an older child. I would prefer a harness seat rather than seat belt up to the age of five, as our girl still wants to wiggle out of the chair. It's great how it can be widened on the sides when the child grows. The fabric is easy to look after too. Looks like the car seat going to last as a long time. Overall, It’s a great car seat worth the money.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-12*