BRITAX RÖMER KIDFIX I-SIZE CAR SEAT

Britax Römer Kidfix i-Size – safety and ergonomics from 100 to 150 cm

Designed for children from 100 to 150 cm in height, this car seat offers a safe, comfortable and long-lasting travel experience. Its build quality, protection level and ergonomic fit make it the best i-Size car seat in its class

The car seat that grows with your child

The Kidfix i-Size is developed to accompany your child from the end of group 1 use through to the last stage of car seat protection. The headrest is ergonomic and height adjustable with markers to always find the correct position. The side wings adapt as the child grows to ensure continuous comfort and support. Its compact design allows for three Kidfix i-Size seats to be installed in the back row of many vehicles

i-Size approved with enhanced protection

Complies with ECE R129 i-Size regulation and has passed stricter impact tests than required. Britax Römer collaborated with car manufacturers to redesign the seat area, reducing neck loads by up to 50 kg in a crash. The Kidfix i-Size is a forward-facing seat suitable from 100 to 150 cm in height

  Superior ergonomics and comfort science

Kidfix i-Size is designed using digital human body models to optimise posture for both younger and older children. The seat area has been redesigned to reduce neck loads by up to 10 percent. Integrated ventilation channels help maintain comfort even in warmer seasons

XP-PAD for advanced frontal impact protection

The XP-PAD is a padded neoprene device fitted to the shoulder belt. It reduces forward head movement by up to 30 percent and prevents the chin from hitting the chest. It can be easily placed on either side and adds extra comfort where the belt touches the body

SecureGuard to protect the abdominal area

This fourth anchoring point keeps the lap belt in the correct position over the pelvic bones. It prevents the belt from digging into the abdomen during a frontal collision. SecureGuard can reduce internal injury risk by up to 35 percent

Adjustable SICT for side impact protection

The SICT system is removable and can be positioned closer to the door. It is designed to absorb up to 40 percent of the energy from a side collision before it reaches the child. It is easy to set up and always ready to protect

Made for practical daily use

The seat installs quickly using the vehicle’s three-point belt and Isofix connectors. The Isofix arms are retractable and can be tucked under the base when not in use. When the seat is empty, it is essential to run the belt through it as if the child were seated to prevent the seat from becoming a projectile in sudden braking

The covers are removable and machine washable at 30 degrees. The new fabric system allows for quick and simple removal and reattachment

Air circulation and thermal comfort

The backrest and seat include well-placed ventilation openings to help keep temperatures pleasant year-round. This reduces sweating during long journeys or hot days

High-back booster with full protection

The high-back booster design protects the child from head to hips. The shell absorbs energy from side impacts and the integrated belt guides ensure correct belt positioning. The padded headrest supports the neck and promotes natural rest or sleep posture

Britax Römer Kidfix i-Size technical specifications

• Group 2 3
• i-Size approval ECE R129
• Forward-facing use from 100 to 150 cm
• Height range 63 to 83 cm
• Width 44 to 48 cm depending on SICT placement
• Seat depth 42 cm
• Product weight 6.7 kg
• Installation with Isofix and belt or belt only

Frequently asked questions about Kidfix i-Size

From what age can I use the Kidfix i-Size
From the moment your child is at least 100 cm tall which usually occurs around age 3 to 4 depending on the child

Can it be installed without Isofix
Yes it can also be installed using only the vehicle’s three-point seatbelt. This is ideal when moving the seat between cars or if the car has no Isofix anchors

Is the belt easy to fit correctly
Yes the upper and lower belt guides ensure a precise installation. SecureGuard provides an extra anchoring point for added abdominal protection

Is the cover washable
Yes the cover is removable and machine washable. The updated design makes removing and replacing the fabric quick and easy

Can I install three seats across the back
Yes the 44 cm width without SICT allows for three Kidfix i-Size seats to be fitted in many compatible rear-seat configurations

What is the best group 2/3 car seat?
The Britax Römer KIDFIX i-Size is one of the best group 2-3 car seats thanks to its i-Size safety, XP-PAD and SICT impact protection, V-shaped backrest adjustable from 100 to 150 cm, and excellent ADAC test results. It offers ISOFIX or seat belt installation and maximum comfort. Expert-recommended, it’s perfect for those seeking a safe, durable, and easy-to-use seat. Buy it at sillasauto.com.

Is the KIDFIX i-Size compatible with my car?
The Britax Römer KIDFIX i-Size is compatible with most vehicles that have ISOFIX connectors or a 3-point seat belt. It is approved under i-Size regulation, so you can install it easily if your car has certified i-Size seats.

Why choose the Britax Römer Kidfix i-Size
Because it is a safe comfortable practical and durable car seat. It combines cutting-edge technology with Britax Römer’s safety expertise. It is easy to use every day offers top-tier protection and grows with your child from 100 to 150 cm