SKU: 36501969473
britax romer booster seat

britax romer booster seat Britax Römer ADVANSAFIX PRO Car Seat

Sale price$19.74 Regular price$21.93
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Description

britax romer booster seat Britax Römer ADVANSAFIX PRO Car SeatBritax Rmer ADVANSAFIX PRO i Size Car Seat Group 1 2 3 Extended Use (15 Months to 12 Years) Your Child's Faithful Travel Companion for Over a Decade The Britax Rmer ADVANSAFIX PRO i Size isn't just a car seat it's your child's faithful friend for every adventure from toddlerhood to adolescence. Designed to grow with your little one, this innovative seat provides ultimate protection from 15 months right up to 12 years, eliminating the need for multiple

Britax Römer ADVANSAFIX PRO i-Size Car Seat - Group 1/2/3 Extended Use (15 Months to 12 Years)

Your Child's Faithful Travel Companion for Over a Decade

The Britax Römer ADVANSAFIX PRO i-Size isn't just a car seat - it's your child's faithful friend for every adventure from toddlerhood to adolescence. Designed to grow with your little one, this innovative seat provides ultimate protection from 15 months right up to 12 years, eliminating the need for multiple car seat purchases as your child develops.

i-Size Safety Excellence for Modern Families

Approved to the latest i-Size safety standards (UN R129), the ADVANSAFIX PRO delivers uncompromising protection that exceeds traditional safety requirements. This forward-thinking design prioritises your child's safety whilst offering exceptional versatility and comfort for the entire family.

Effortless FLIP&GROW Technology

Simply convert from a harnessed seat to a highback booster seat in a few easy steps thanks to the ingenious FLIP&GROW function. Once your child reaches 100cm (max. 105 cm / 22 kg), change the integrated 5-point harness to your car's 3-point seat belt easily, ensuring seamless transitions as they grow.

Advanced Safety Technologies

Triple Protection System

The ADVANSAFIX PRO features three advanced safety technologies working in perfect harmony:

SICT (Side Impact Cushion Technology)

Protect your little one in the event of a side collision with superior side impact protection. The Side Impact Cushion Technology (SICT) minimises the distance between the car and the car seat, reducing the force of an impact by up to 40%, directing dangerous forces away from your precious child.

XP-PAD Shock Absorption

Protect your little one's precious neck in a frontal impact with the shock-absorbing foam XP-Pad. In an accident, it reduces an abrupt forward head movement by up to 30%, preventing your child's chin from hitting their chest. The XP-PAD also provides comfortable padding to prevent seat belt irritation.

SecureGuard Frontal Protection

Adding an extra fourth contact point to secure the lap belt safely across your child's pelvis - rather than their delicate tummy - reduces abdominal forces by up to 35%, providing crucial protection during frontal impacts.

Key Features & Benefits

Extended 5-Point Harness Protection

The 5-point harness can be used right up until your little one reaches 105 cm (max. 22 kg), meaning you can rely on the ADVANSAFIX PRO to keep your little one safe for longer. This extended harness use provides superior protection compared to standard Group 1/2/3 seats.

Independent ISOFIX Installation

Install the seat more easily, since each ISOFIX connector of the ADVANSAFIX PRO is operated independently. They're fast and safe to connect, making installation straightforward even for busy parents.

Top Tether Stability

The sturdy Top Tether minimises any rocking movement of the car seat during an accident, reducing the possibility of harm to your child's head and neck, providing additional peace of mind.

EasyRecline Comfort System

Let your little one sleep comfortably throughout childhood travels with the EasyRecline function. Adjust effortlessly even when your child is in the seat, ensuring optimal comfort for naps and long journeys.

V-Shaped Protective Headrest

The V-shaped headrest is specially designed to limit the movement of your child's head, protecting their neck if the worst happens, whilst giving them space as they grow. The headrest and harness adjust simultaneously for perfect positioning.

Soft Performance Chest Pads

Your child's movements are reduced in a collision thanks to the soft performance chest pads. The pads bring even more comfort to the secure 5-point harness, and for those inevitable messy moments, they can even be removed for washing without having to detach the straps.

Technical Specifications

Specification Details
Age Range 15 months to 12 years
Height Range 76cm - 150cm
Weight Limits Up to 22kg (harness mode), 36kg (booster mode)
Safety Standard i-Size (UN R129) approved
Installation Methods ISOFIX + Top Tether (76-105cm), Belt + ISOFIX (100-150cm)
Seat Weight 10kg
Dimensions (H x W x D) 60-83 x 44 x 48 cm
Seat Width 44cm (suitable for 3-across installations)
Recline Positions Multiple positions with EasyRecline
Cover Care Machine washable, quick-remove design

Installation Options & Compatibility

Phase 1: Harness Mode (76-105cm)

  • ISOFIX + Top Tether installation
  • ISOFIX is a standard system of connection points featured in almost all cars. This establishes a secure and firm connection between the child's car seat and the car
  • Suitable from approximately 15 months to 4 years

Phase 2: Booster Mode (100-150cm)

  • Option 1: Belt + ISOFIX attachment (recommended)
  • Option 2: 3-point seat belt only (cars without ISOFIX)
  • Suitable from approximately 4 years to 12 years

Why Choose the ADVANSAFIX PRO?

Exceptional Value for Money

It's a great price when you think how long it will actually last you, meaning you could only need two car seats during their childhood. This represents outstanding long-term value compared to purchasing multiple seats.

Space-Efficient Design

The Britax Römer ADVANSAFIX i-Size is quite a slim seat measuring 44cm in width. This is great for people trying to fit three car seats along the back seat for their children.

Superior European Engineering

We are big fans of Britax Römer and the great child car seats that they design and make, all in-house in Germany. Every ADVANSAFIX PRO benefits from decades of German engineering excellence and safety innovation.

Extended Legal Protection

The car seat can be used for longer as a high back booster, up to 150cm, even though the law is up to 135cm. This extension is great and offers protection for the child longer if you choose.

Care & Maintenance

Quick-Remove Cover System

Machine washable cover easily detaches from the car seat without removing the harness, so you can get back on the road quicker. This innovative design saves time and reduces hassle during cleaning.

Care Instructions

  • Remove cover using simple quick-release mechanism
  • Machine wash at 30°C with mild detergent
  • Air dry - do not tumble dry
  • Chest pads can be removed separately for washing
  • Harness remains attached for easy reassembly

Expert Safety Recommendations

Forward-Facing from 15 Months Minimum

We are pleased that the newest version of the ADVANSAFIX, as a forward facing only seat, is suitable from 15 months as a minimum, as rear facing is much safer for younger children. The i-Size regulation ensures optimal safety timing for the transition to forward-facing travel.

Professional Installation Verification

Always verify compatibility with your specific vehicle and consider professional installation checking to ensure optimal safety performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36501969473

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K
Verified Purchase
Kayla Laufenberg
Carnegie, US
★★★★★ 2
Stops working after one use
Color: #03 Champagne
Stops sprays very quickly. I used it once to see how it is and now it doesn’t spray.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025
B
Verified Purchase
Brandee Martinho
Lowell, US
★★★★★ 5
The dogs loved it! Will buy again.
Style: Squeaky Chicken
My dogs have really enjoyed all the layers to this toy. It squeaks and has a noisy film on the inside of the cloth that they really like. The toy itself is very stiff and rigid but they like that. It’s been about 3 months and they recently broke through the pink layer so it lasts quite a while. It was a challenge for them to get the layer off once they had broken through the stitching so it would keep him occupied for a very long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
R
Verified Purchase
Randy C.
Grantham, US
★★★★★ 5
My dog LOVES this, but...
Style: Squeaky Duck
My dog loved this right out of the box, she didn't learn to squeak it for a couple of hours, but she just stopped playing with her other toys, ragged as they may be... My dog is a Manchester/hound dog mix, of some sort, I'm only sure about the Manchester, she resembles them in look, size, weight, and all else. She weighs approximately 20-ish pounds, or so. With that said, like I said, she loves it, so much so that within 16 waking hours after its arrival she brought me the inner squeaker, the body was in the kitchen. :) She tore off the top part of the head and gained access to the squeaker, and EXACTLY as advertised and other reviews, it is a really good squeaky toy, she really doesn't seem to mind that the outer portion is gone, the (seemingly) durable squeaker might actually last. She can still play with the 'body', the toy is made that when (not if) they rip off an appendage, the nentire innards WILL NOT come out. It's a well designed toy in that respect. So, at times she will play with that too, she has brought me the BODY several times too, My dog is a really CRAZY chewer, she is somewhere under a year old and she will chew on anything that she is in front of her, including rocks, a blade of grass as she runs by, furniture legs, window sills, you name it, she has eaten it. She is a problem dog, but we picked her, and we'd do the same if it was our kid, we wouldn't throw them out. :) She has to be watched constantly, that is not the most fun, but, like they say, 'It is what it is'. I mention all of that to show that even though she is a crazy chewer, the rubber portion of the toy is still 'with us', for now, I will update this if anything else develops, and I am sure it will. Oh yeah, I really need to add, I don't think that the makers can make a chew toy 'outer' from anything that will last that long, not unless you go to a rope material, and I did not want that, it can be swallowed and cause more trouble. (Fabric can be swallowed too, but it's at least softer...) So, really, more than likely you can't get any better than this if your dog is a crazy chewer too.
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Reviewed in the United States on July 1, 2023
A
Verified Purchase
Amanda Pike
Battle Creek, US
★★★★★ 1
Awful Durability
Style: Squeaky Chicken
My dog had this toy for all of 30 minutes an COMPLETELY destroyed it. He is not an aggressive chewer, and has had plenty of rip and reveal toys from Bark Box last WEEKS. I thought I'd try out another brand, but I will be swiftly placing a Bark Box order. I am very disappointed in the durability and quality of this toy thay is supposed to survive non-agressive chewing. If I could give 0 stars, I would have.
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Reviewed in the United States on May 15, 2026
M
Verified Purchase
Mrs. M
Lexington, US
★★★★★ 4
Feet
Style: Squeaky Duck
Dogs love it, but tore off the feet within minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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