Cybex Sirona Z i-Size Plus Seat


Sirona Z i-Size


Rear and front-facing with flexible comfort for a growing child

Regulation : UN R129/02 i-Size

Height  : 45 cm – 105 cm

Weight : Max. 18 kg

Age      : From birth up to approx. 4 years


SKU: N/ACategories: , , ,

Sirona Z9


Sirona Z LSP 1

Integrated Linear Side-impact Protection

The integrated L.S.P. System of the Cybex Sirona Z i-Size Plus 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%.

Sirona Z ER Tech

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

Sirona Z Headrest

Height-adjustable headrest

The adjustable headrest offers 12 positions for a customized adjustment as your child grows.Sirona Z Rearward Recline

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 traveling, the Sirona Z i-Size car seat offers 5 reclining positions when rear-facing and 3 reclining positions when forward facing.


Sirona Z Rotating

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.


Modular Line AG

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.

Sirona Z Rearward 1

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.

Sirona Z Belt Holder

Belt Holder

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

Additional information

Weight9.5 kg
Dimensions72.5 × 46 × 44 cm

Autumn Gold, Mountain Blue, Soho Grey