No more awkward bending and back pain when lifting your child in and out of the car seat. The innovative 360° rotation mechanism ensures positioning in and removal of your child from the seat has no impact on the back. The CYBEX Sirona S i-Size provides for rear-facing transport of children up to approx. 4 years and significantly reduces the risk of injury during frontal impacts. In the case of all CYBEX child seats, the top priority is safety. The Driving Direction Control of the Sirona S i-Size prevents the seat being used in a forward-facing direction until your baby is 16 months of age and at least 76cm in height. When the time comes, it’s child’s play to adjust the seat to forward-facing.



  • Size (W x H x D): 71 x 43 x 64cm
  • Weight: 14.5kg
  • Cover material: 100% polyester
  • Colour: Soho Grey



  • 360° rotation mechanism
  • Driving Direction Control
  • Suitable for children from birth up to 4 years, to 18kg
  • 3 year manufacturer warranty*


Included in delivery

  • CYBEX Sirona S i-Size child car seat
  • base
  • ISOFIX installation aids

*More information can be found at