Cybex Sirona G i-Size 61-105cm car seat, Plus Ocean Blue

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  • € 299.00
Client price: € 284.05 (- 5 %)
(Product)PRODUCT is in stock

Sirona G i-Size car seat 61-105cm

A rear-facing car seat that’s built to protect, with 50% higher safety levels¹. The Sirona G i-Size has 360° rotation making on-boarding so simple. Integrated Linear Side-Impact Protection and all-round ventilation keep your child safer and cooler. Only compatible with the Base G.


360° Comfort & Safety

Say hello to rear-facing travel with the CYBEX Sirona G i-Size car seat, with up to 50% higher safety levels¹ for your child. Innovative 360° rotation makes on and off-boarding so much simpler for parents as the child is placed in a much more manageable position. Once on-board theyll be cool and comfortable whatever the weather, with an all-round ventilation system with special mesh fabric increasing breathability by a factor of six². A cleverly integrated Linear Side-Impact Protection System gives streamlined, reinforced protection in the event of a side collision. As part of the Modular G family, the base you had for the Cloud G i-Size fits perfectly to this seat: continuous safety for the first four years.




Up to 50% higher safety levels

Rear-facing travel is obligatory until your child is 15 months old. The Sirona G i-Size provides up to 50% higher safety levels in its rear-facing position¹. In the event of a front impact, the childs body is pushed against the padded car seat shell, minimizing movement and reducing the forces on the neck. A safe position you can count on until your child is 4 years old.


Easy on and off-boarding

An innovative 360° rotation mechanism makes it so easy to get your child in just the right position to get them in or out of the car, even when the seat is reclined. Swivel the seat with one hand: much quicker and so much better for your back.


One base – two seats: ​Designed to cover their first 4 years

As part of the Modular G Family, the Cloud G i-Size and Sirona G i-Size both fit onto the Base G. Once your child has outgrown the infant car seat, the Sirona G i-Size installs on the base with just one click. Thanks to ISOFIX installation, its a user-friendly, safe foundation for the first four years (Base G available separately).




Optimal breathability

An all-round ventilation system creates a wonderful traveling environment for your child. Our Plus Line has specially developed mesh which is six times more breathable than conventional fabrics, taking the strain out of those hot, sweaty journeys.



Streamlined, integrated Linear Side-impact Protection combined with an energy-absorbing shell and a specially designed headrest gives your child increased protection in a side collision, keeping them safer on every trip.


Always in a comfortable position

You can always find your child’s happy position thanks to five separate recline settings, in both front and rear-facing positions. They're specially engineered to make it so easy to adjust to just the right angle.


Grows with your child up to 4 years old

Keeping pace with your ever-growing child is so much easier thanks to this height-adjustable headrest. You are certain to find just the right position to keep them safe and extremely comfortable.


Straightforward installation and anchorage

Extra stability and safety in the car, with a load leg to prevent forward rotation in the event of an accident and user-friendly ISOFIX fastenings that connect the base directly onto the chassis of your car.


Easy on-boarding

Cleverly designed belt holders keep the seatbelt and harness straps out of the way to avoid your child accidentally sitting on them when they're being put in the car seat – making the whole process so much smoother and simpler for parents.


Whats included?

  • Sirona G i-Size toddler car seat (isofix base is sold separately)
  • User guide (Quick-start guide & digital guide access)



  • Age range: From approx. 3 months up to 4 years (from birth with newborn inlay)
  • Child height: 61 - 105 cm (from 40 cm with newborn inlay)
  • Child weight: Max. 19 kg
  • Approval regulation: UN R129/03
  • Dimensions: Length 710 mm; Width 440 mm; Height 750 mm
  • Weight with Base G: 13 kg
  • Care instructions: Fabric covers machine washable at 30° C


Compatible with (sold separately):

  • Cybex Base G
  • Cybex Car Seat Cup Holder
  • Cybex Sirona G Line Newborn Inlay
  • Cybex Sirona G Line Summer Cover
  • Cybex SensorSafe 4-in-1 Kit Toddler
  • Cybex ISOFIX Guides



¹ Compared to the same seat forward-facing in a frontal crash. Result of internal testing using 2022 ADAC frontal crash test criteria.

² Compared to conventional car seat covers.

Model code: 36-523001211
Product code: 286636
Color: Plus Ocean Blue

Transport information

The estimated delivery time depends on the transport method chosen by the customer. If the item is out of stock, please contact our customer service regarding availability!