Britax Romer Flex 5Z ISOFIX Base, Black

Product descriptionChevron Down Icon

Product code: 31555201

R129-compliant (i-Size ready)

Compatible with Baby-Safe iSENSE, the new Baby-Safe 3 R129 and Dual Fix iSENSE

Easy one-click installation

180° rotation for Dual Fix iSENSE car seat

Modular and rotating

With the Flex Base iSENSE car seat base from Britax, you are ready for four years of convenient safety on the road. The modular base is compatible with the Baby-Safe iSENSE, the new Baby-Safe 3 R129 as well as the Dual Fix iSENSE car seats(sold separately).

Isofix ratchet system - The Isofix ratchet system allows the Isofix arms to extend so you can easily fit or remove the infant carrier base from the Isofix anchorage points in the car. Once the Isofix connectors are engaged, push the base until it touches the back of the vehicle seat. This prevents the infant carrier from lifting upwards in case of an impact.

Smart and adjustable support leg - The support leg provides extra stability for the infant carrier base via the vehicle floor. It minimises the tilting and rotational movement and reduces the forward movement forces exerted on your child in a crash situation, helping to protect them. For a secure installation, the support leg can be adjusted to suit the height that’s best for your car. The easy-to-read indicator shows you when the support leg is positioned firmly on your vehicle’s floor, changing from red to black when correctly installed. Additionally, the support leg will notify you with a sound if not correctly installed.

Adjustable rebound bar - The rebound bar not only helps to prevent the child car seat from tilting in an impact but can also be adjusted by an entire 8 degrees. This allows you to easily adjust the rebound bar to the backrest of the vehicle seat and gives your child 10% of additional leg space.

The Britax Römer Pivot Link Isofix System - In case of an impact, the patented Pivot Link ISOFIX System directs the force first downward (1), into the vehicle seat, and then forward (2), more gently – greatly reducing the risk of head and neck injury for your child.

Adjustable angle optimisation - In cars with inclined vehicle seats, there may be a risk of your child's head tipping forward especially when they fall asleep in a car seat. With Flex Base iSENSE car seat base you can easily adjust the angle of the car seat to six different positions, to provide a more ergonomic yet safe position of your child during any journey and in any car.

Easy access - The rotating feature of the base allows you to turn the seat to the car door, allowing you to easily place your child in and out of the seat.

Easy storage - We know that parents of young children have lots of baby items to store so we have designed the infant carrier base with convenient storage in mind. The support leg folds up so you can easily pack it away in your car’s boot or at home. By folding the leg under the seat this also deactivates the security beep from the support leg to provide a peaceful storage solution.

Safety:

Under no circumstances should a rearward-facing car seat be used on a passenger seat where there is an active airbag.

Correct fitting of all car seats and boosters is of paramount importance in making them the most effective in the event of an accident. Not all car seats fit all cars and it is important to check for fitting suitability on all cars you intend to fit the seat to, as well as re-checking if you change your car.

Always read the instruction booklet which comes with your car seat to achieve a safe and correct fitting, retaining the guide for future reference. We recommend fitting your car seat in advance of first using it.

We recommend that babies shouldn't be left in car seats (infant carriers) for prolonged periods.

Suitability:

Please make sure that you check the car seat you choose is suitable for your car before ordering. This can be done in store with a Partner or on the car seat manufacturer's website.

Some of our shops offer a car seat fit test, where a Nursery advisor will test the display model in your car to check that it will fit properly. Please contact your local shop to see if this service is available. Alternatively, please contact the car seat manufacturer who will be able to advise whether their model will be suitable for your car.

We also offer in-store and virtual appointments so you can access our All Things Baby services at a time and place to suit you. Click here to book your appointment.

Find your nearest department store.

Car seats adhere to strict safety regulations and conform to one of the following two types of seats:

Height-based seats - These seats adhere to the safety regulation R129. They must be rear-facing until your child is over 15 months old. Your child can use a forward-facing child car seat when they’re over 15 months old. You must check the seat to make sure it’s suitable for the height of your child. i-Size is an enhancement of R129 that makes it easier to confirm your car seat's compatibility with any i-Size approved vehicle - reducing the risk of installing your car seat incorrectly. While all i-Size car seats meet the R129 testing standards, not every R129 car seat is an i-Size compatible seat.

Weight-based seats - These seats adhere to the R44.04 car seat regulation. The seat your child can use (and the way they must be restrained in it) depends on their weight.

The below table is a rough guide as to how the car seats can relate to a child’s age based on the average child's weight or height depending on the regulation chosen.

Car Seat Age Guide:

Group Child's weight* Approx. age of child Child's height†

0+ Birth up to 13kg/29lb Birth up to 12-15 months 40 - 85cm

0+ & 1 Birth up to 18kg/40lb Birth to up to about 4 years 40 - 105cm

0+, 1, 2 & 3 Birth-36kg/79lb Birth to 12 years 40 - 150cm

1 9-18kg/20-40lb About 9 months to 4 years 85 - 105cm

1, 2 & 3 9-36kg/20-79lb About 9 months to 12 years 85 - 150cm

2 & 3 15-36kg/33-79lb About 4-12 years 105 - 150cm

*Applies to R44.04 seats. † Applies to R129 (i-Size) seats.

Note: This is a rough guide only - please always refer to the individual car seat’s guidance for more specific details. Some car seats will be approved in two or more groups or across various height bands. This just means that these seats have the ability to adapt as your child grows, meaning they can use them for longer.

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Product specificationChevron Down Icon

Baby & toddler safety type

Travel Safety

Brand

Britax

Car seat type

Baby Car Seats

Care instructions

Wipe clean only

Composition

Plastic

Country of origin

Germany

Dimensions

H43.5 x W44 x

Height band

40-105cm

R129 regulation

R129 Compliant

Reclining positions

Multiple

Weight

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9.5kg