SKU: 30707255529
cybex sirona s2 i-size car seat

cybex sirona s2 i-size car seat CYBEX Sirona G i-Size and Cloud G i-Size Fog Grey Car Seat with FREE Isofix Base G Black

Sale price$24.35 Regular price$27.05
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

cybex sirona s2 i-size car seat CYBEX Sirona G i-Size and Cloud G i-Size Fog Grey Car Seat with FREE Isofix Base G BlackPlease note: this item is not stocked in store and will be delivered in 7 14 days. Buy Sirona G i Size and Cloud G i Size Plus Car Seat with Free Base G Black CYBEX SIRONA G I SIZE Car Seat Ultimate comfort and safety, for their first four years. The rear facing Sirona Gi i Size has 360 rotation for easy boarding. All round air ventilation for cooler rides. The latest car seat in our successful Sirona line is the most comfortable yet: the Sirona Gi i

 

Please note: this item is not stocked in store and will be delivered in 7-14 days.

Buy Sirona G i-Size and Cloud G i-Size Plus Car Seat with Free Base G Black

CYBEX SIRONA G I-SIZE Car Seat

Ultimate comfort and safety, for their first four years. The rear-facing Sirona Gi i-Size has 360° rotation for easy boarding. All-round air ventilation for cooler rides.

The latest car seat in our successful Sirona line is the most comfortable yet: the Sirona Gi i-Size. Rear-facing for safer travel, this car seat also features integrated Linear Side-impact Protection for defense from all directions. Upgrade your child's comfort with 360° rotation for smooth on and off-boarding. All-round air ventilation keeps the ride cool - choose the Plus version for additional mesh and even more breathability. Three recline positions provide tailored comfort in all directions, for tiny newborns and fully-grown four-year-olds alike. 360° of comfort and safety for their first four years: the Sirona Gi i-Size.

Features:

Up to 50% higher safety levels*

Rear-facing is one of the safest ways to travel. In the critical first moments of a front impact, the child's body is pushed against the padded car seat shell, minimizing movement and reducing the force acting on the child's neck. Mandatory up to 15 months (76 cm), we recommend keeping your child rear-facing for as long as possible. The Sirona Gi i-Size is designed for comfortable rear-facing travel until your child weighs 20 kg. (*compared to the same seat forward-facing in a frontal crash. Result of internal testing using 2022 ADAC frontal crash test criteria.)

Quick and easy onboarding

A stress-free start to your journey. Just swivel the car seat to face the car door and get your child onboard. You avoid back strain, while your child stays comfortable in any recline position.

Optimal breathability

Comfort in any season. All-round air ventilation lets air flow through channels in the car seat, carrying away heat and helping avoid a sweaty ride for your little one. The Plus version also includes mesh fabric that increases breathability up to six times compared to regular fabrics.

Side-protection

The integrated L.S.P. defends your child against the force of a side impact. Working together with the energy-absorbing shell, the L.S.P System significantly reduces the effect of impact force on the child.

Always in a comfortable position

Find the ideal recline setting, whether your little one is a newborn or a growing child. Three positions are available in both riding directions - and in the boarding position, too. And when your child falls asleep, you can recline the seat with one hand, letting them dream that little bit longer.

Grows with your child up to 4 years old

As your baby grows, adjust the Sirona Gi i-Size headrest for a comfortable fit at every stage. 12 positions allow a tailored fit to your child, with the harness lengthening automatically with each adjustment - and only one hand is required.

Easy onboarding

When you're getting your child strapped into the car seat, you need all the help you can get. The Sirona Gi i-Size features ingenious loops designed to keep the harness out of the way as you get your child onboard.

Straightforward installation and anchorage

It only takes moments to set up your Sirona Gi i-Size. Use an ergonomic handle to click the ISOFIX into the vehicle seat and extend the load leg. Both provide stability and extra safety. Visual indicators help you confirm the seat is ready to protect.

Specifications:

  • Age range: From birth up to 4 years
  • Child height: 40 - 105 cm
  • Child weight: Max. 20 kg
  • Approval regulation: UN R129/03

Compatible with:

  • Car Seat Cup Holder
  • Sirona Gi i-Size Summer Cover
  • SensorSafe 4-in-1 Kit
  • ISOFIX Guides

CYBEX CLOUD G I-SIZE PLUS Car Seat

The CYBEX Cloud G i-Size has flexibility, comfort and safety embedded in its DNA. A specially designed semi lie-flat position supports your child, both in and outside the car, helping their body posture as they grow.

Getting them in and out of the car is easy thanks to an innovative 180° rotation and one-click rotate & release system, just rotate towards the door and the car seat will auto-release, allowing you to lift the car seat with two hands if needed.

All-round air ventilation including special mesh fabric** keeps your little one cool on every warmer journeys. The Cloud G i-Size gives parents extra peace of mind thanks to the advanced linear side-impact protection system (L.S.P) providing 15% more protection from a side impact*.

The Cloud T i-Size is certified for airline use, meaning you can keep your little one safe on family trips.

As part of the Modular G family, the Base G ISOFIX base fits both the Cloud G i-Size baby car seat and the Sirona G i-Size car seat, supporting your child until they are 4 years old.

Features:

Comfort On The Go

The Cloud G i-Size provides an ergonomic lie-flat position, in and out of the car. Simple to recline with one hand, you can find your child’s ideal position in seconds, paving the way to great naps. Keeping your child as flat as possible is good for their growth and imitates being in their cot.

Auto Release Mechanism

Getting your child in or out of the car has never been so easy. Thanks to its one click-rotate & release system, this seat is in or out the car in the blink of an eye. When rotated towards the door the auto-release system allows you to use both hands if needed to lift the car seat from the car.

Breathability

Let the air flow around your child thanks to the Cloud G i-Size’s all-round air ventilation, with the Plus Line’s mesh fabrics six times more breathable than comparable fabrics. Precisely placed ventilation holes mean the air not only circulates but leaves the seat completely, making every journey a breeze.

Long Lasting Baby Car Seat

Specially designed to accommodate newborns from 40 cm, even the smallest babies are protected. Easily adjust the headrest to match your child’s growth with 14 individual positions and an automatically adjusting harness, guaranteed to keep them safe and comfortable for years to come.

Sun Protection

Keep your little one safely cocooned in their own little world thanks to the XXL Sun canopy. Designed to provide UPF 50+ sun protection and keep them safely sheltered from the wind.

15% More Side Impact Protection

Integrated and streamlined side impact protection reduces the impact of a side collision by approximately 15% *, giving parents extra peace of mind by knowing their child is even better protected on every journey.

Travel System Compatible

Freedom to roam as you wish, easily connect your Cloud G i-Size to a variety of CYBEX pushchairs or strollers thanks to clever adaptors. One quick turn of a handle to release makes everything so easy and so smooth your sleeping baby won’t even notice.

Protection For Smaller & Premature Babies

The newborn inlay ensures a cosy, protected fit for babies as small as 40cm and can easily be taken out when they grow and need more space.

Airline Compatible

Your new travel buddy, fits snuggly into an airplane seat allowing you to take it with you on family trips. Giving you all the freedom, and your child all the security needed to roam as the Cloud G i-Size can even be used with just a seatbelt so you can leave your Base G at home.

Modular System

The Base G fits both the Cloud G i-Size and the Sirona G i-Size car seats of the G Line Modular System. With an innovative locking function that ensures the Cloud G i-Size is clicked-in correctly, safely supporting your child’s journey from birth up to approx. 24 months and with the Sirona G i-Size from birth to toddler.

Specifications:

  • Regulation: UN R129/03
  • Child Height: 40 - 87cm (From birth – approx. 24 months)
  • Child Weight: Max. 13kg
  • Product Weight: 3.9kg

CYBEX Base G - Black

Getting your child in or out of the car was never so easy than with the Base G! One pull of the rotation handle turns the seat towards the car door and the car seat is automatically released to lift effortlessly out of the car!

The Cloud G i-Size and Sirona G i-Size both fitting the Base G provides the flexibility and longevity you need with a growing child. A safety-conscious Driving Direction Control (D.D.C.) setting ensures the Cloud G i-Size can only be attached and used in a rear-facing position, to avoid misuse. Two further settings let you to decide if the Sirona G i-Size is used forward or rear-facing.

User-friendly ISOFIX-Release buttons keep installation simple and the cleverly-designed load leg provides extra stability.

Features:

DRIVING DIRECTION CONTROL MECHANISM

An innovative aid that ensures your Cloud G i-Size is kept in the rear-facing position by only allowing it to be connected in the optimum safety position. Two further settings allow your child to travel rear or forward-facing (after 15 months and 76cm) in the Sirona G i-Size when the time comes.

EASY ISOFIX INSTALLATION

The Base G's installation is made simple and secure thanks to parent-friendly ISOFIX-Release buttons, whilst clever, height-adjustable load leg technology provides extra stability.

MODULAR SYSTEM

Its compatibility with both the Cloud G i-Size and the Sirona G i-Size, makes the Base G the perfect choice for parents looking for flexibility and a long-term solution for their ever-growing children.

AUTO RELEASE MECHANISM

When the G Line car seat is rotated 180° towards the car door, the auto-release mechanism allows you to use two hands if needed to remove the seat from the base.

ROTATION MECHANISM

The Base G rotates the Cloud G i-Size and Sirona G i-Size car seats towards the door and clever design allows them to be removed simultaneously for easy off-boarding. As your child gets older the rotation mechanism makes it quick and easy to switch to forward-facing with the Sirona G i-Size after 15 months old (76 cm).

Specifications:

  • Length: 640 mm
  • Width: 410 mm
  • Height: 270-770 mm
  • Product Weight: 7kg
  • Depth/ Length: 66.5cm
  • Width: 45.6cm
  • Height: 31.2cm

What's included?

  • Sirona Gi i-Size Car Seat
  • CLOUD G I-SIZE Car Seat
  • Newborn Inlay
  • User Guide
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30707255529

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4.2 ★★★★★
Based on 12 reviews
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L
Verified Purchase
Lory Johnson
Louisville, US
★★★★★ 4
Recommend it for all.
Color: Grey, Color: Grey
Very nice chair. One warning…it went together very easily except for the last screw!!! I finally gave up. A neighbor came over and gave up. My daughter came. Over and after much groaning and moaning got that last screw in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
D
Verified Purchase
Daniel Ivan
Charlottesville, US
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty. Very easy to put together and it feels very firm and stable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
C
Verified Purchase
Carol Ann Everitt
Omaha, US
★★★★★ 5
Thick seat cushion
Color: Grey
This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
B
Verified Purchase
Brittany
Waukegan, US
★★★★★ 3
Meh
Color: Black
It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2026
J
Verified Purchase
joshua nieves
Dallas, US
★★★★★ 5
Perfect for work
Color: Grey
Great quality office chair. Easy to put together as there is minimal assembly required with easy to follow instructions. The chair has many sitting options. Makes for a perfect chair to use all day long. Its an ergonomic chair that allows you to adjust tilt tension, arm rest height, chair height, and allows to actually move arm rest upward and out of the way. You can swivel and sway and roll around with ease. Perfect chair for sitting all day. The head rest provides great neck support and the padding is very comfortable and supportive. The wheels are strong and the entire chair is sturdy. Quality material, The cushion is made with memory foam as well as comfort foam. Such a quality chair. This is a great value for the money. I would recommend to anyone that sits for any period of time for work or otherwise .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

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