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The all-new update to the award-winning Sirona Z2 i-Size, the Sirona T i-Size rear-facing car seat features all-round air ventilation. Choose the Plus option for an integrated sun canopy.

  • Age0 – 4 yrs
  • Weight18 kg
  • RegulationUN R129/03
  • 45 – 105 cm (with additional newborn cushion)
  • 76 – 105 cm



  • Age range: From birth up to 4 years
  • Child height: 40 – 105 cm
  • Child weight: Max. 18 kg
  • Approval regulation: UN R129/03

Travelling in Safety and Comfort ‒ Rear and forward-facing

Enjoy the ultimate travel experience with the CYBEX Sirona T i-Size rear-facing car seat. Your child can enjoy the hight of comfort with features like all-round air ventilation promising pleasant temperatures in all seasons. Smooth 360° Rotation lets you get them on and off-board effortlessly, and helps you switch between rear or forward-facing travel. Recline the seat with one hand, for extra comfort on the road. And you can enjoy the peace of mind through safety features such asintegrated Linear Side-impact Protection. Get ready for blissful trips with your child, with the Sirona T i-Size.

Care instructions:

  • Fabric covers machine washable at 30° C

Compatible with:

  • Base T
  • Base Z2
  • Car Seat Cup Holder (coming soon)
  • Sirona T Line Summer Cover (coming soon)
  • SensorSafe 4-in-1 Kit Toddler
  • ISOFIX Guides
Additional information

Sepia Black (comfort), Mirage Grey (comfort), Sepia Black (plus), Mirage Grey (plus), Nautical Blue (plus), Peach Pink (plus), Cozy Beige (plus)