Key Features

• Birth – 105cm (approx. Birth up to 4 years)
• Rear facing
• Central 5-point harness system
• Newborn inlay included

No more awkward lifting and back pain when helping your child in and out of the car seat. The innovative one-hand 360° rotating mechanism provides a comfortable entry and exit position and because it’s the safest way for your little one to travel, the Sirona S i-Size provides comfortable rear-facing travel for children up to 105 cm, approx. 4 years. Driving Direction Control (DDC) prevents forward-facing use before the child is at least 16 months old and 76 cm tall, whilst the Energy Reduction Technology and Integrated L.S.P. System offer increased safety.

Driving Direction Control (DDC) helps to prevent misuse of the forward-facing position until the child is at least 16 months old and 76 cm tall.

Thanks to Energy Reduction Technology (ER-Tech), the Sirona S offers increased safety for your child in the forward-facing position in the event of a head-on collision. It reduces the forces on the neck of a child during a front crash by approximately 20%, compared to other existing harness systems.

The integrated L.S.P. System improves safety in the event of a side-impact collision. It reduces the force of a side-impact in combination with the energy-absorbing shell by approximately 25%.

12-Position height-adjustable headrest offers customised adjustment as your child grows.  Simply recline and rotate with one hand, whilst keeping one hand free.

• Offering 5 recline positions when rear-facing and 3 reclining positions when forward-facing for comfortable sleeping and traveling.


• The energy-absorbing shell absorbs the forces of an impact and protectively covers the child.


• Thanks to the rebound bar, the Sirona S offers increased protection in the event of a rear collision.


• Clever belt holder makes taking your child out of the seat easy