NEW

BABY-SAFE i-SIZE

i-Size safety without compromise for your growing baby
BABY-SAFE i-SIZE is our first infant carrier that conforms to the new car seat regulation ECE R129 (i-Size). The seat provides safety and comfort for newborns up to 15 months, adjusting and protecting your child as they develop and grow to 83 cm in height.

Suitability


Baby Toddler Child

i-Size (ECE R129)

40 cm - 83 cm

Birth - 13 kg

Birth - 15 months

QUALITY STANDARDS


  • Made in Germany

AWARDS



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BABY-SAFE i-SIZE

PRODUCT HIGHLIGHTS

ROOM TO GROW – SUITABLE FROM BIRTH TO 15 MONTHS

BABY-SAFE i-SIZE has been designed to conform to the new car seat regulation ECE R129 (i-Size), and is suitable for newborns up to 15 months, so they can fit into the seat up to 83 cm in height. The infant carrier has a newborn insert for extra support, also offering energy absorption in case of an impact. The insert can be removed and the height of the headrest adjusted, allowing for more space as your child grows.

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PATENTED LIE-FLAT TECHNOLOGY FOR SAFETY AND COMFORT

When it comes to car travel with small newborns, we understand how difficult it is to decide the best lying position for them. Because a small baby’s muscles aren’t developed enough, a flatter lying position is better, while a more upright position is safer in the event of an impact. The BABY-SAFE i-SIZE has our patented lie-flat technology offering you an easy solution - when you adjust the headrest height the lying position adjusts as well. You can achieve an even better lying position for your little one when using the infant carrier with the BABY-SAFE i-SIZE FLEX BASE in certain cars.

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PEACE OF MIND FOR YOUR BABY’S FIRST JOURNEYS

Children, especially newborn babies are the most vulnerable passengers on the road and they need to be protected from every potential impact. That’s why we focus on developing, testing, improving and manufacturing children’s car seats, maintaining the highest safety standards possible and exceeding the strict testing for the new child safety regulation (ECE R129). So when you purchase the BABY-SAFE i-SIZE, you’re buying our research and commitment to your child’s safety, allowing you to enjoy every journey with your child with total peace of mind.

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SEE
HOW TO

INSTALLATION

INSTALLATION OPTIONS


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Infant Carrier on base

For those moments when your baby is fast asleep and you need to either take them out or put them in the car without disturbing them, you’ll really appreciate our infant carrier bases. While the base is fitted in the car, you can easily attach or remove the infant carrier with one simple click, without hassle and without disturbing your baby.

Our i-Size bases will fit all i-Size approved seating positions, so please check your vehicle owner's manual for i-Size approved seating positions in your car.

For use of an i-Size car seat in a car with ISOFIX but no i-Size approved seating positions, please check our vehicle list or FIT FINDER® on the product page to see if the infant carrier base is compatible with your car.

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Belted

Britax offers you more flexibility with the option to install your car seat with the car’s own integrated 3-point seat belt. This option is handy if you will be transferring the car seat to different cars which may not all have ISOFIX. Seat belt guides on the car seat will help you install the seat correctly.

Check the vehicle owner's manual for suitable seating positions and ask your local retailer for a test installation in your car (please ask for a member of staff trained by Britax), before you buy the car seat.

DIRECTION OF TRAVEL


Rearward facing installation

40 cm - 83 cm


Travel System

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On pushchair


On busy days when you and your baby are out and about in the car, you can make the day go smoother by using the infant carrier on a pushchair. Simply take the infant carrier with your baby out of the car and securely click it onto the pushchair – and you’re ready to go.

All Britax Römer infant carriers can be fitted on any Britax pushchair with our CLICK & GO® adapters, plus they are also compatible with other leading brand’s pushchairs.

On base


For those moments when your baby is fast asleep and you need to either take them out or put them in the car without disturbing them, you’ll really appreciate our infant carrier bases. While the base is fitted in the car, you can easily attach or remove the infant carrier with one simple click, without hassle and without disturbing your baby.

FEATURES

Newborn insert
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Especially designed to give extra support to small babies. The included newborn insert with removable, energy-absorbing foam pads reduces the space and offers additional comfort.

Superior Side Impact Protection (SICT)
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Our improved SICT offers superior protection in case of a side collision in two steps. It pushes your child away from the impact in a controlled movement and then deforms to absorb energy exerted on your child. To benefit from the protection, simply adjust and adapt the SICT on the side of the car seat closest to the door.

Lie-flat technology
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Allows for a more comfortable and more ergonomic position for newborns. Our patented integral recline mechanism allows you to adjust the flatness of the lying position according to the child’s height. The position changes automatically when adjusting the headrest, increasing the space to suit your child’s development. The shoulder straps also adjust automatically when adjusting the headrest.

Easy adjustable headrest and harness
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Our padded headrest and harness can easily be adjusted with one hand to suit your child’s height. Before you secure your little one in the harness, check to make sure the headrest is in the correct position – just above its shoulders.

Sun canopy
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The sun canopy offers protection for your child from the sun (UPF 50+) and wind both in the car and on the pushchair. The attachment points are conveniently located on the sides of the handle so you can carry the infant carrier while the sun canopy is in use.

5-point harness
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We believe a 5-point harness is the safest way to secure your child in a car seat because it keeps your child safe and tight in the seat’s protective shell. In case of a collision, the harness distributes the forces of the impact across 5 points, two at the shoulders, two at the hips and one where the harness buckles between the legs. This helps to protect your child from all directions of impact.

Easy release with CLICK & GO® adapters
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The infant carrier can easily be taken off the base or pushchair so parent can remain in an ergonomic, upright position while lifting the carrier up. Simply use the handle at the back of the infant carrier to unlock it from the base or pushchair and lift it off with ease.

Adjustable handle
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The adjustable handle allows you to easily move it to the back and place your child in the infant carrier. Simply press the buttons on each side of the handle to unlock and move it. When the carrier is placed on the floor, we recommend folding the handle back completely to prevent rocking.

SPECIFICATIONS

Montagu Montagu

Approval


i-Size (ECE R129)

Accessories

What's included


  • User instructions
  • Newborn insert
DOES
IT FIT
YOUR CAR?

FIT FINDER®

DOES IT FIT YOUR CAR?
Not every seat fits in every car. To ensure that you pick the right seat, just choose your car to see if the BABY-SAFE i-SIZE fits.

FAQ'S

Nearly 50 years of experience and constant technical innovation have enabled us to understand in minute detail what happens in different types of collisions. Based on our continually developing knowledge, a 5-point harness system is the only form of restraint we use on all of our Group 0+/1, 1 and Group 1/2 car seats – and we are increasingly finding ways to build extended 5-point harnessing into our Group 2 seats.

WHAT TYPES OF RESTRAINT SYSTEMS ARE AVAILABLE?

In Group 0 and 0+ children are generally restrained with a 3- or 5-point harness.

In Group 1 children are restrained either with the 5-point harness or the shield system (also referred to as safety cushion, impact shield, tray shield).

In Group 2 and 3 children are commonly restrained with an adult seat belt. However we are also working to champion extended 5-point harnessing for Group 2 so that children can benefit from the safety of 5-point harnesses for longer.

HOW DOES A 5-POINT HARNESS WORK IN A COLLISION?

A 5-point harness significantly decreases the forces a child experiences during a crash since the forces are diverted from the child along the harnessing to the five points of contact with the seat. When the child is decelerated by the harness, the cushioning occurs across a wide area and limits shoulder and hip movements, resulting in low stress to the spine and the forces being directed away from the parts of the body containing vital organs.

In case of a roll-over, side impact or an offset impact (where combined vertical, lateral and or oblique loading lateral forces can lead to ejection or submarining), the shoulder contact points and the crotch strap stop those risks and keep the child safely in the protecting seat shell.

In addition, the harness allows for adjustment to the child’s body and therefore offers a good and customised fit.

WHY DO WE USE A 5-POINT HARNESS?

In all 5-point harness seats, the straps come down over the shoulders and across the hips to fasten to the buckle that comes up between the legs. The harness sits closely against the bony parts of the pelvis (the crotch and hip straps) and across the shoulders and rib cage (the shoulder straps). When a child moves forward in the seat, as they would in a crash, the properly tightened harness is already "holding" the child and it effectively restrains them, spreading the crash forces out through the seat and the remaining forces across the strong bones of the body.

WHY ARE CHILD CAR SEATS WITH INTEGRATED HARNESS OFTEN MORE EXPENSIVE THAN CAR SEATS WITH SHIELD SYSTEMS?

Harnesses are complex to design. The visible part is only a small fraction of the total harnessing system, which comprises straps, tongues, crotch strap, attachment means to the shell and a key element: the buckle. Technology is needed to allow easy tightening and release of the harness, and the harness needs to be routed around the shell to allow connection at the right points for the load to be distributed whilst providing easy access to the parents securing their child in the seat. In addition, designing a shell which can properly withstand the forces the harness places on the upper shell, to effectively restrain the upper body, is technically advanced and costly.

CHECK FOR ECE R44/04 APPROVAL

This means the car seat adheres to the strict European safety standards. You can also check out the safety ratings given to most seats by European testing organisations like Stiftung Warentest, Which? and ADAC.

CHECK THAT IT IS COMPATIBLE WITH YOUR CAR

Our FIT FINDER® is a comprehensive car fitting tool that will help you check that our car seat is compatible with your car. This is a vital step both in ensuring that the car seat’s safety features will all be able to function in your vehicle, and also to ensure that you are fully insured should any accident occur.

Use our FIT FINDER® tool

UNDERSTAND ITS KEY FORMS OF PROTECTION

We appreciate that car seats are complex things. But we also believe it’s important for parents to make informed choices about the type of protection they offer your child. So we’ve pulled together some of the key safety features to consider in choosing your car seat.

What kind of harnessing does it offer? 5-point harness, 3-point harness or a vehicle adult seat belt? Understand the difference between harness and shield systems – and why at Britax we only use harness protection.

Does it offer advanced side impact protection? In case of a common form of collision – from the side.

Does it offer superior head and neck protection? To protect a growing child’s vulnerable head and developing neck muscles.

Does it offer extended rearward facing travel? Proven to be the safer way to transport smaller children (and a legal requirement until 9kg).

Find out more about our safety technologies

CHECK THAT YOUR CHILD IS READY TO MOVE TO THE NEXT STAGE OF SEAT

For safety reasons, you should keep your child in each stage for as long as possible – until they reach the weight limit or the head reaches the top of the seat. This is especially important for babies as rearward facing seats offer the safest way of travelling. The general rule of thumb of moving your child to the next group is:

Move from a Group 0 + infant carrier when your child exceeds the weight limit and can sit up unaided, or if their head is higher than the top of the infant carrier.

Move from a Group 1 seat when the upper edge of the shell is roughly at eye level of the child or your child exceeds the weight limit.

Do not move too early to a Group 2-3 seat because these seats are wider to accommodate larger children. Also a younger child's shoulders are too narrow to hold to the adult seat belt securely. A small child can therefore easily slip out from under the belt, especially when they fall asleep during the journey.

A child’s head should ideally never exceed the top of the seat shell. This is especially important when using an infant carrier in order to minimise the risk of head contact with interior components of the car should an accident occur. The recline angle of our ERWF child seats (DUALFIX, MAX-FIX II, MAX-WAY, MULTI-TECH, etc.), is more upright than in an average infant carrier, which reduces the risk of the child’s head coming into contact with the car interior.

Additionally, the child’s body is more supported over a larger surface area of the seat than they would be in an infant carrier where the child is in a flatter position. In our ERWF child seat models, the child can continue to use the seat until he or she reaches the maximum stated weight or their eye-line is level with the top of the seat shell/headrest. The child would typically outgrow the seat before reaching either one of these stages since the child’s shoulders would no longer fit beneath the headrest (found in most of our ERWF products) in its highest position.

WHAT IS THE AGE AND WEIGHT OF YOUR CHILD? AND HOW LONG DO YOU WANT YOUR CHILD TO STAY IN ITS SEAT?

The facts:

The first thing you will need to identify is which seats will ‘fit’ your child. This depends on the age and weight of your child. Once you’ve worked this out, your next decision is around the type of seat that will best suit your needs.

Some car seats are designed around the physiology of a specific age or weight of child. These seats offer tailored protection along with the ultimate comfort and fit. Other seats are designed to cover a much wider age range. These seats offer maximum flexibility and longevity. Only you can decide what is best for your family.

Your options:

BABY

Group 0/0+ | birth to 13kg (~12/15 months) These seats, often called an ‘infant carrier’, can be used from birth and can be connected to your pushchair. They are designed to be lightweight and portable and cocoon a small baby.

Group 0+/1 | birth to 18kg (~ 4 years) These seats are designed to be used from birth but to remain within the car. They are often bigger and heavier and can’t be connected to a pushchair. However they may fit your child until they are around 4 years or 18kg. And they may give you the option of changing the seat to forward facing once your child is ready.

TODDLER

Group 1| 9kg to 18kg (~ 4 years) These seats are designed for children from 9kg up to 18kg and offer a range of installation and harnessing technology.

Group1/2 | 9kg to 25kg (~ 6 years) These seats are designed for children from 9kg up to 25kg and often offer a choice of rearward or forward facing travel to suit the changing needs of a growing child.

Group 1/2/3 | 9kg to 36kg (~ 12 years) These seats are designed for children from 9kg up to 36kg and represent our longest lasting seat.

CHILD

Group 2/3 |15kg to 36kg (~ 4 - 12 years) These seats, often known as highback booster seats, are designed to offer ultimate safety for older children from 15kg to 36kg.

WHAT TYPE OF INSTALLATION SYSTEM WILL WORK WITH YOUR CAR?

The facts:

Since we invented ISOFIX in 1997 with Volkswagen it has become the standard for car seat installation in Europe. It greatly reduces the risk of installation error and makes transferring an infant carrier when used in combination with the base in and out of the car simple. We would always recommend an ISOFIX seat, but understand that not all cars have ISOFIX connectors. So it’s important that you clarify this before you choose your seat.

Your options:

ISOFIX

Our ground-breaking invention with Volkswagen that enables simple, direct connection to the car’s anchorage points

ISOFIT

Designed specifically for Group 2/3 car seats – using both ISOFIX and the car’s seat belt to direct impact forces away from your child

ISOFIX+

Our latest development of the ISOFIX system uses wider connectors to limit sideways movement, along with V-Tether anchorage at the top to reinforce stability and absorb impact forces.

Vehicle adult seat belt

Using the car’s three-point seat belt to connect the seat

DO YOU WANT TO USE YOUR SEAT AS PART OF A TRAVEL SYSTEM?

The facts:

Only certain types of car seat, often called an ‘infant carrier’, can connect onto your pushchair. And all seats are not compatible with every brand or model of pushchair. If you choose the right combination then an infant carrier plus travel system can offer a flexible, cocooning way of transporting your small child on the road and pavement.

Your options:

All Britax infant carriers are compatible with all of our travel systems – and with many other leading brands of travel system.

WOULD YOU LIKE YOUR CHILD TO REMAIN REARWARD FACING FOR LONGER?

The facts:

Current European legislation (ECE R44/04) states that a child must remain rearward facing until at least 9 months or 9kg. However at Britax we recommend that your child travels rearward facing for as long as is feasible for your child, your car and your lifestyle.

Your options:

We are proud to offer not just one of Europe’s broadest ranges of rearward facing seats, but one of the most advanced – with options to keep your child rearward facing until 25kg (or around 6 years old). We also understand that this isn’t possible for all families, so we have a range of seats that give parents the choice of when to change the direction of travel for their child.

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