Cybex SIRONA Z2 i-Size



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CYBEX recommends rear-facing travel for children from birth up to 105 cm – approx. 4 years.

  • UN R129/02 i-Size
  • HEIGHT 45 cm – 105 cm
  • WEIGHT max. 18 kg
  • AGE From birth up to approx. 4 years


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Cybex SIRONA Z2 i-Size

  • UN R129/02 i-Size
  • HEIGHT 45 cm – 105 cm
  • WEIGHT max. 18 kg

Suitable from birth up to approx. 4 years

Cybex SIRONA Z2 i-Size is a 2nd stage car seat for use with the Cybex Z base, Z2 base and T base.

The base is not included. The Sirona Z2 is suitable for use with the Z base, Z2 base and T base. Please note that the extra rotating feature of the Z2 will not be applicable on the Z base. It is however perfectly safe to use in all other aspects.

Cybex SIRONA Z2 i-Size showcases safety, convenience and style. Thanks to the clever 360° rotation mechanism it’s easy to choose between the safe rear-facing or the comfortable forward-facing positions. Your child’s entry and exit are also effortless, as the seat can now be rotated to the door-side of the car even if reclined. The industry-defining safety standards that CYBEX is known for are assured with the inbuilt Linear Side-impact Protection System and energy-reduction technology. Smooth, comfortable and safe trips for you and your child are a given with the Sirona Z2 i-Size.


The 360° rotation mechanism eases the child’s entry and exit, relieving strain on parent’s backs. The seat can be rotated using only one hand even when in a reclined position, allowing even the youngest passenger to be boarded ergonomically. The rotation mechanism makes switching between rear and forward-facing positions easy.


In its rear-facing position Sirona Z2 i-Size reduces the risk of injury in a head-on collision. Tests show that the force of impact from a frontal crash is distributed more evenly over a large area of the car seat shell. We recommend using the Sirona in the rear-facing position until the child is at least 15 months old and longer if possible.


The one-hand recline function makes it easy for parents to adjust the seat while keeping their other hand free. The Sirona Z2 i-Size car seat has 5 recline positions in both rear and forward-facing modes, increasing comfort for sleeping and travelling.

Effortless boarding

The magnetic belt holders ease taking your child in and out of the car by securing the belts to the sides of the car seat, so they do not obstruct your child’s entry or exit.

Grows with the child

The adjustable headrest has 12 positions so it can be adapted to your child’s size as they grow, offering protection throughout the years that the car seat is in use.

More safety when forward-facing

The Sirona Z2 i-Size Energy-Reduction Technology (ER-Tech) offers increased safety for your child in the forward-facing position in the event of a head-on collision. In a frontal crash, technology in the seat helps to reduce the force acting on the neck of a child by more than 20%, compared to other conventional 5-point harness systems.

Side-impact protection

The integrated Linear Side-impact Protection (L.S.P.) System of the Sirona Z2 i-Size offers increased safety in the event of a side-impact collision. Working in combination with the energy-absorbing shell, it reduces the force of a side-impact by approximately 25%.

Good fit for the youngest of travellers

The Sirona Z2 i-Size includes a removable newborn inlay included, which creates a near-flat lying position for newborns. This helps to reduce the risk of the baby’s head tipping forward while asleep, which can lead to serious breathing problems. To accommodate your infant as they grow, the newborn inlay should be removed once the child is taller than 60 cm.

Additional information



Cybex Colour

Autumn Gold, Autumn Gold Plus, Deep Black, Deep Black Plus, Khaki Green Plus, Mountain Blue Plus, Mustard Yellow Plus, Nautical Blue Plus, Soho Grey, Soho Grey Plus

Car Seat Orientation

Rear and Forward Facing



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