Cybex Sirona Z i-Size

Cybex Sirona Z i-Size

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R 6,650.00
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I-SIZE UN R129/02, 45 – 105 cm, max. 18 kg

(from birth up to approx. 4 years)


Integrated linear side-impact protection

The integrated L.S.P. System of the Sirona Z i-Size offers increased 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%.

Energy reduction technology (ER-Tech)

The Energy Reduction Technology of the Sirona Z i-Size offers increased safety for your child in the forward-facing position in the event of a head-on collision. The "ER-Tech" reduces the forces on the neck of a child during a front crash by more than 20%, compared to other existing 5-point harness systems.

Height-adjustable headrest

The adjustable headrest offers 12 positions for a customized adjustment as your child grows.

One-hand recline and rotation function​

The smart one-hand recline and rotation function makes it easy for parents to adjust the seat while keeping one hand free. For comfortable sleeping and travelling, the Sirona Z i-Size car seat offers 5 reclining positions when rear-facing and 3 reclining positions when

Rotating mechanism including driving direction control (D.D.C.)​

The innovative 360° rotating mechanism provides a comfortable entry and exit position with less strain on parent´s backs. In addition it makes switching between rearward and forward-facing position easy.
The Driving Direction Control (D.D.C.)
prevents misuse of the forward-facing position
before the child has completed 15 months of age and has reached a minimum size of 76 cm.

Two-click installation with ISOFIX

A two-click installation with ISOFIX allows for simple installation and guarantees increased safety. In combination with the Base Z the car seat is secured using the car's ISOFIX system and requires no further fastening. An installation indicator also helps to prevent possible misuse.

Modular system - one base, two car seats

Stay flexible – as part of the Z-Line Modular System, the Sirona Z i-Size and the Cloud Z i-Size both fit onto the Base Z for a continuously safe ride from birth up to 105 cm, approx. 4 years.

Rear-facing car seat

A rear-facing car seat reduces the risk of injury in a head-on collision by more than 80% when compared to a forward-facing system car seat. Tests show that the force of an impact during a front crash is distributed evenly over a large area. CYBEX recommends rear-facing travel for children up to 105 cm, approx. 4 years.

5-Point harness system

Secure your child in the Sirona Z i-Size with ease, thanks to the central 5-point harness system.

Energy-absorbing shell

The energy-absorbing shell of the Sirona Z i-Size absorbs the forces of an impact and protectively covers the child.

Belt holder​

The magnetic belt holders make taking your child out of the seat easy.

Easy boarding position

Rotation Mechanism with Driving Direction Control: The innovative 360° rotating mechanism makes it easier to get your child in and out of the car, ensuring less strain on your back. It can be easily adjusted from rear- to forward-facing without having to remove and reinstall the seat. The Driving Direction Control (D.D.C.) provides added safety by preventing forward-facing use before your child has reached the minimum age and size requirements (at least 16 months old and 76 cm tall).

Maximum comfort in the car

Smooth Adjustment – One-Hand Recline Adjustment: For a restful slumber in the car, the Sirona Z offers 5 rear-facing upright and recline positions and 3 forward-facing upright and recline positions. Its 12-step height-adjustable headrest provides even more comfort. The one-hand upright and recline adjustment mechanism is quick and easy to use.

Rebound bar

The integrated rebound bar of the Sirona Z offers increased protection in the event of a rear collision.

360° rotating mechanism

Innovative 360° rotating mechanism provides a comfortable entry and exit position with less strain on parents’ backs.

Driving Direction Control (D.D.C.)

The Driving Direction Control (D.D.C.) prevents misuse in forward-facing use before the child is at least 16 months old and 76 cm tall.


715 mm


430 mm


620 mm


15 kg



Fabric covers machine washable at 30°