CYBEX Sirona SX2 i-Size Car Seat - River Blue


Cybex Sirona SX2 i-Size Car Seat - River Blue

Simple to set up. A dream to use. The 360° rotating Sirona SX2 i-Size takes the stress out of installing the car seat and getting your child secure. Reliable safety features combine with ease of use for a carefree travel experience.

It only takes a moment to get your child onboard and to swivel the seat to a rear-facing position, safe and secure from the start of your trip. If you wish to switch your child to forward-facing when they grow bigger, 360˚ rotation lets you do it in seconds. And the advanced Linear Side-impact Protection System is preset for immediate use – one less thing to take care of so you can focus on enjoying the journey ahead.


• 360˚ rotation mechanism

• Rear-facing car seat

• Advanced Linear Side-impact Protection


Quick and easy to get your child onboard

The 360° rotation mechanism takes the back strain out of getting your child onboard. It’s a breeze to swivel the seat to the door side and get your child in and out. Switching between rear and forward-facing travel also couldn’t be easier.

Comfortable travel in the safest position

A rear-facing car seat improves your child’s safety in the event of a head-on crash. In this position front impact forces are distributed across the car seat shell. It is mandatory for children to travel rear-facing until they are over 15 months old and 76 cm tall. However, CYBEX recommends that children travel rear-facing in the Sirona for as long as possible.

Preset side-protection for error-free installation

Advanced Linear Side-impact Protection is ready to use from the start, with no extra installation required. In combination with the energy-absorbing shell, it can reduce the force of a side impact by approximately 25%.

Reduces impact forces in the forward-facing position

Energy Reduction Technology improves safety performance during front-facing travel. Impact forces are transmitted directly into the car seat via the harness system, where they are partially dissipated by energy-absorbing materials. This reduces the forces acting on the child’s sensitive neck by approximately 20%.

Quick change to a sleeping position

The one-hand recline function makes a peaceful drive only a moment away. Quickly adjust the seat and your child can take a relaxing nap on the go. With different settings available in both riding directions, it’s easy to find the perfect sleeping position.

Grows with your child up to 4 years old

The height-adjustable headrest has 12 settings for a customized fit. As your child grows it’s simple to adapt the seat to keep pace.

Easier to get your child in and out of the seat

The belt holders are a genius feature that give you a helping hand with getting your child on board. Hook the harness straps out of the way – the simple solution to tangled-up limbs!

Straightforward installation and anchorage in your vehicle

ISOFIX is a reliable way to install the car seat in your vehicle. Set-up is simple with fast one-click attachment and a load leg to anchor the seat in the vehicle. Easy-to-check indicators confirm when the seat is installed and ready to go.

Diverts impact forces away from your child

The energy-absorbing shell is designed to flex with an impact and channel dangerous forces away from your baby.


• Dimensions: 71cm(L) x 49cm(W) x 68cm(H)
• Product Weight: 14.1kg
• Fabric covers machine washable at 30°
• PROPERTIES: UN R129/03 i-Size
• GROUP: Gr. 0+/1
• HEIGHT: 61cm - 105cm (from 45cm with newborn inlay)
• WEIGHT: 18kg
• AGE: From approx. 3 months up to 4 years (From birth with newborn inlay)


This product has a 3 year manufacturer warranty

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