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Based on over 50 years of experience and research, the KIDFIX III S offers the highest level of safety. Thanks to the latest safety features, your child is always perfectly protected – from head to hip. So you can be reassured that your little one is safe and sound. The KIDFIX III S is suitable from 15-36kg which will take your child from approx. 3.5 years – 12 years old.

The KIDFIX III S is one of the most comfortable child seats on the market thanks to its ergonomic shape. Due to the 20% larger seating area and v-shaped backrest, the seat grows perfectly with your child.

The shock-absorbing XP-PAD prevents the impact of your child’s chin on their chest, absorbing up to 30%* of the energy in the case of a frontal collision. As well as this, the SecureGuard holds the lap belt in the optimal position over the pelvic bones, reducing the risk of abdominal injuries. This also helps reduce abdominal forces in the event of a frontal collision by up to 35%**.

The KIDFIX III S also features SICT (Side Impact Cushion Technology), which reduces impact forces by minimising the distance between the car and the car seat and absorbs the energy before it reaches your little one. To benefit from the protection, simply adjust the SICT on the side of the car seat closest to the door.


Dimensions(cm): 67-85H x 54W x 43D

Weight: 8kg

Forward facing installation 15 – 36 kg

*Britax Römer tests 2019

**Britax Römer internal tests with a Q6 dummy, representing an average 6-year-old child

Additional information

Weight 8 kg
Dimensions 43 × 54 × 67-85 cm

Cosmos Black


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