Maxi-Cosi Familyfix S isofix Base

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The Maxi-Cosi FamilyFix S is the dedicated ISOFIX car seat base designed to work with the S-Family car seats – Pebble S and Pearl S (sold separate).


Your child's safety is paramount, and that's why FamilyFix S meets the highest and latest i-Size safety standards (R129/03), ensuring maximum protection on every family journey. 


With the intuitive Click & Go installation feature, FamilyFix S is designed to be safe, secure, and quick to use, ensuring every installation is a breeze. Visual installation feedback is used to ensure you’ve correctly installed your S-Family car seat, providing peace of mind when travelling with your little one. 


At Maxi-Cosi, we always emphasise the importance of rearward-facing travel for infants and young children. With the FamilyFix S, your child can remain in the recommended rearward-facing position up to 4 years old. With the Pearl S, it’s possible to switch to forward-facing travel using the FamilyFix S once your child reaches 15 months old (76 cm) or older. 


FamilyFix S is more than just a car seat base; it’s your starting point for safe and secure journeys with your little one. With their safety comes your peace of mind, supported by standout features such as Click & Go installation, feedback indicators and ergonomic release button.