BRITAX RÖMER KIDFIX I-SIZE CAR SEAT
20000252BRKFIIISIZE
Britax Römer Kidfix i-Size car seat probably the safest Gr 2-3 car seat ever made by Britax Römer It includes all the technical advances of the brand such as the XP-PAD SecureGuard, etc. and also the i-Size standard.
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Britax Römer KIDFIX i-Size – Group 2/3 car seat from 100 to 150 cm
ECE R129 i-Size approved · Forward-facing · XP-PAD + SecureGuard + SICT · Advanced ergonomics · Integrated ventilation · ISOFIX and seat belt installation
The i-Size booster seat that grows with your child up to 150 cm
The Britax Römer KIDFIX i-Size is designed for children from 100 to 150 cm, offering safe, comfortable and long-lasting journeys. It stands out for its ergonomic fit, high-back protection and key safety technologies such as XP-PAD, SecureGuard and SICT.
An excellent choice for the stage when your child starts using the vehicle seat belt, with guides that help keep everything correctly positioned and improve stability in everyday use.
Ergonomics and comfort
Ventilation and airflow
Video: KIDFIX i-Size in detail
Key highlights
100–150 cm (Group 2/3)
High-back booster for head-to-hip protection
Clear belt guides for correct positioning
Compact design, suitable for three-across in many vehicles
Machine-washable cover
Safety
ECE R129 i-Size approval
XP-PAD reduces forward head movement
SecureGuard helps protect the abdominal area
Adjustable SICT for side impact protection
Comfort
Advanced ergonomics based on digital body models
Height-adjustable ergonomic headrest
Side wings adapt as your child grows
Integrated ventilation for thermal comfort
i-Size safety with reinforced protection
The KIDFIX i-Size complies with ECE R129 i-Size and is used forward-facing from 100 to 150 cm. Britax Römer collaborated with car manufacturers to redesign the seating area, helping to reduce neck loads and improve posture stability in the event of a collision.
XP-PAD: advanced frontal protection
The XP-PAD is a padded neoprene protector placed on the shoulder belt. It helps reduce forward head movement and increases comfort where the belt contacts the child’s body.
SecureGuard: abdominal protection
This additional belt guide keeps the lap belt in the optimal position over the pelvis, reducing the risk of abdominal injury in a frontal collision.
Adjustable SICT: side impact protection
The SICT can be positioned on the side closest to the door and helps absorb energy in the event of a side impact.
Superior ergonomics and everyday comfort
The KIDFIX i-Size was developed using digital human body models to ensure optimal ergonomics for both smaller and taller children.
The ergonomic headrest is height-adjustable and features markers to help maintain the correct position. The side wings adapt as your child grows, providing consistent support and comfort.
Ventilation and thermal comfort
Strategically placed ventilation openings help maintain a pleasant temperature and reduce sweating during long journeys or warmer weather.
Installation and daily use
The KIDFIX i-Size installs with a 3-point seat belt and can be stabilised using ISOFIX. The ISOFIX connectors are retractable and can be hidden under the base when not in use.
Important note
When the seat is empty, always fasten the seat belt as if a child were seated, to prevent the seat from becoming a projectile during sudden braking.
Easy-care cover
The cover is removable and machine washable at 30°, designed for quick removal and refitting.
Technical specifications · Britax Römer KIDFIX i-Size
| Group | 2/3 |
| Approval | ECE R129 i-Size |
| Use | Forward-facing (100–150 cm) |
| Height (seat) | Min 63 cm · Max 83 cm |
| Width | 44–48 cm (depending on SICT position) |
| Depth | 42 cm |
| Weight | 6.7 kg |
| Installation | ISOFIX + seat belt or seat belt only |
Frequently asked questions about the Britax Römer KIDFIX i-Size
From what age can the KIDFIX i-Size be used?
From when the child reaches 100 cm, typically around 3 to 4 years old.
Can it be installed without ISOFIX?
Yes. It can also be used with the 3-point seat belt only.
Is the upholstery washable?
Yes. The cover is removable and machine washable at 30°.
Can three seats fit across the rear bench?
In many vehicles, yes. The compact width may allow three KIDFIX i-Size seats depending on the car and SICT position.
