The Cybex Sirona G i-Size is the perfect child car seat that not only ensures maximum comfort and safety during car journeys - especially in the rear-facing position. Thanks to the innovative 360° rotation, getting in and out of the car is child's play, as you can simply turn the seat to the door side. This makes it easy to put your child in the seat, even when the seat is in the cosy sleeping position. The sophisticated all-round air circulation and special mesh inserts (only with the Plus fabrics) guarantee that your little passenger stays at a pleasant temperature at all times, even on hot days. The integrated linear side impact protection gives you additional peace of mind when travelling, as it increases safety in the event of side collisions. As part of the G-Line Modular System, the Sirona G i-Size can be easily combined with the Base G (sold separately) and the Cloud G i-Size infant car seat (sold separately), allowing you to switch seamlessly from the first to the fourth year of life. The practical harness loops keep the 5-point harness out of the way when getting in, making buckling up stress-free for your child. With the height-adjustable headrest and five comfortable recline angles, your child will always sit comfortably, regardless of the position. The user-friendly ISOFIX connectors and the stable support base ensure secure anchoring in the car and prevent the seat from slipping. The Sirona G i-Size is your reliable companion for safe and relaxed car journeys - so that your child is well protected and comfortable on the road for the first four years of their life!
What's new about the Sirona G i-Size?
The new Sirona G i-Size reboarder impresses with its modern, minimalist design. In elegant, monochrome colours, it blends harmoniously into any car - and offers the proven and safe technology of its predecessor!
Comfort or Plus fabrics
With the Comfort fabrics of the Sirona G, you and your child will experience maximum comfort on every journey! The elasticated knitted fabrics are particularly soft, easy to care for and offer a pleasant feel.
The Plus fabrics go one better: thanks to the double weave and integrated 3D mesh inserts, they offer six times more breathability than conventional fabrics. This keeps your child pleasantly cool and cosy in the car seat even on warm days.
Dimensions and other features:
- Height of the child: 61 - 105 cm
- Weight of the child: 19 kg
- Dimensions: L 71 cm x W 44 cm x H 75 cm
- Weight: 8 kg
- Fastening system: ISOFIX
- rear-facing seat position up to at least 15 months
- 360° rotation (on the base G)
- 5-point harness
- linear side impact protection
- integrated ventilation channels/ all-round air circulation
- five recline angles
- Installation: with Base G
- Compatible with: Base G
Scope of delivery: Cybex Sirona G i-Size Reboarder (Cybex Base G sold separately)
Child seat Installation type: | with base station |
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Child seat direction of travel: | Rearfaceing and forwardfaceing |
Child seat type: | Reboarder (61 cm to 105cm) |
Cybex
Cybex offers child car seats, baby carriers and strollers that are not only safe, but perfectly fit the urban lifestyle. At the heart of the brand and its product developments is the Cybex S.D.F. innovation principle: the combination of unsurpassed safety and quality, unique design and intelligent functionality. With a fresh, unconventional approach, Cybex designs products for parents, challenging the boundaries that often separate safety, design and function. Cybex has three lines: platinum, gold and silver. The products in the lines differ primarily in the colors and fabrics available. However, the products in the Platinum line also offer more features. If you want to learn more about the manufacturer, feel free to check out our Cybex brand store. There we have summarized all the important information for you.

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Innovative 360° rotation
The innovative 360° rotation of the Sirona G i-Size makes it easier to buckle your child in, as the child seat can be rotated to the door side, making it easier to put your child in the car seat - even in the reclined sleeping position. The seat can be turned to the side with just one hand, which is easy on your back. In addition, the Sirona G i-Size is part of the G-Line Modular System and is compatible with the Base G (sold separately) and also with the Cloud G i-Size infant car seat (sold separately). As soon as your child has outgrown the infant car seat, the Sirona G i-Size can simply be clicked into place in one easy step. Thanks to the ISOFIX connectors, the base offers a user-friendly and safe solution for the first four years.
Cosy and comfortable
The Sirona G i-Size grows effortlessly with your child and offers maximum comfort and safety at all times. The height-adjustable headrest can be individually adjusted and, thanks to the five practical recline angles, your child will always sit comfortably in both the rear-facing and forward-facing positions. The sophisticated design can be adjusted quickly and easily with just one hand - for maximum comfort in everyday life.


Safe travelling!
The rear-facing seat position is mandatory up to the age of 15 months and with the Sirona G i-Size offers up to 50% more protection in the event of a frontal impact by reducing the forces on the head and neck. This car seat enables safe travelling up to the age of four. The integrated Linear Side Impact Protection (L.S.P.), combined with an energy-absorbing shell and a specially developed headrest, offers additional protection in the event of side collisions and thus ensures maximum safety on every journey.
All-round air circulation
Strategically placed ventilation channels ensure comprehensive air circulation, keeping your child comfortable throughout the journey. The Plus line goes one step further and integrates special mesh materials that increase breathability by up to six times. This keeps your child pleasantly cool, especially on hot days.
