Sirona G i-Size Rotating Car Seat

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CYBEX Sirona G i-Size 360° Rotating Toddler Car Seat

Extended Rear-Facing Protection - 3 Months to 4 Years (61-105cm)

Say hello to rear-facing travel with the ADAC and Stiftung Warentest awarded CYBEX Sirona G i-Size car seat, with up to 50% higher safety levels¹ for your child compared to forward-facing. The innovative 360° rotation makes on and off-boarding so much simpler for parents as the child is placed in a much more manageable position. Once on-board they will be cool and comfortable whatever the weather, with an all-round ventilation system with special mesh fabric increasing breathability by a factor of six². A cleverly integrated Linear Side-Impact Protection System gives streamlined, reinforced protection in the event of a side collision.

Please Note: The CYBEX Base G is sold separately and is required for installation and 360° rotation function.

What's Included with the Sirona G i-Size Car Seat

Complete Car Seat Package:

CYBEX Sirona G i-Size car seat
Linear Side-Impact Protection (L.S.P.) system
12-position adjustable headrest
5-position recline system (rear and forward-facing)
All-round ventilation system
5-point safety harness with harness loops
Energy-absorbing shell
Comprehensive instruction manual

Sold Separately:

CYBEX Base G - Required for installation (ISOFIX with load leg)
Newborn inlay (optional - for use from birth to 61cm)

Key Features & Benefits

360° Rotation for Easy Access

Innovative 360° rotation mechanism (requires Base G - sold separately)
Rotate seat to face car door for effortless boarding
One-handed rotation even when seat reclined
No awkward reaching or back strain
Quick positioning for parent convenience
Switch between rear and forward-facing easily
Click positions for secure placement

Extended Rear-Facing Safety - 50% Higher Protection¹

Up to 50% higher safety levels in rear-facing position¹
Extended rear-facing to 105cm (approximately 4 years)
Reduces forces on child's neck in frontal collision
Body pushed against padded shell minimizes movement
Compulsory rear-facing until 15 months (76cm)
Recommended rear-facing as long as possible
Forward-facing option from 76cm when appropriate

i-Size Safety Excellence

Meets latest i-Size (UN R129/03) safety regulations
Height-based sizing for accurate fit
Enhanced side-impact protection standards
Rigorous ADAC crash testing (award-winning)
Stiftung Warentest awarded
Multiple safety awards from independent institutes
German engineered quality throughout

Linear Side-Impact Protection (L.S.P.)

Integrated L.S.P. system for side-collision defense
Reduces side-impact forces by approximately 25%
Works with energy-absorbing shell
Streamlined, reinforced protection
Defense from all directions
Extends automatically when installed on Base G
Premium crash protection technology

All-Round Ventilation System

Innovative ventilation channels throughout seat
Carries heat away for cooler rides
Comfortable in all seasons and weather
Plus Line option available (6x more breathable mesh²)
Prevents hot, sweaty journeys
Optimal temperature regulation
Year-round comfort assurance

5 Recline Positions

Five separate recline settings
Available in both rear and forward-facing modes
Reclining in boarding position possible
One-hand recline adjustment
Tailored comfort for newborns to 4-year-olds
Sleeping and awake positions
Adjust without disturbing child

12-Position Adjustable Headrest

Grows with your child from 3 months to 4 years
12 height positions for perfect fit
Harness automatically lengthens with adjustment
One-handed operation
Ensures proper head protection at all stages
No threading harness through slots
Easy, secure adjustments

Modular G Family System

Part of CYBEX Modular G Family
Use same Base G from birth to 4 years
Compatible with Cloud G i-Size infant seat
Seamless transition from baby to toddler
One base investment lasts four years
Click on/off Base G in seconds
Continuous safety through first four years

Compatibility

Base Compatibility:

✅ CYBEX Base G - Required (sold separately)
❌ Cannot be installed with vehicle seat belt alone
❌ Not compatible with Base T, Base Z2, or other bases

Understanding Comfort vs Plus Fabrics

The CYBEX Sirona G i-Size is available in two fabric options:

Comfort Fabric

Standard premium polyester fabric
Integrated ventilation system
Machine washable at 30°C
Available in multiple colourways
Excellent quality and comfort

Plus Fabric (Premium Option)

Advanced 3D mesh fabric inserts
Up to 6 times more breathable than standard fabrics²
Significantly enhanced airflow
Reduces humidity and prevents overheating
Perfect for warmer climates
Machine washable at 30°C
Additional premium colourways

Which Should You Choose?

Choose Comfort Fabric if: Standard excellent ventilation suits your needs, prefer classic colour options
Choose Plus Fabric if: Live in warmer climates, want maximum breathability, prefer extended colour range

Perfect For

Parents wanting maximum extended rear-facing safety
Families with Cloud G i-Size continuing with Base G
Those prioritising 360° rotation convenience
Safety-conscious families choosing ADAC-awarded seats
Parents with back issues benefiting from rotation
Gift buyers seeking premium German engineering
Families wanting modular system value
Design-conscious buyers wanting award-winning aesthetics

Technical Specifications

Safety standard: UN R129/03 (i-Size)
Age/Height range: 3 months to 4 years (61-105cm)
With newborn inlay: Birth to 4 years (40-105cm)
Maximum weight: 19kg
Installation: ISOFIX with Base G (sold separately)
Rotation: 360° with Base G
Side-impact protection: Linear Side-Impact Protection (L.S.P.)
Headrest positions: 12 adjustable heights
Recline positions: 5 (rear and forward-facing)
Harness: 5-point with automatic adjustment
Rear-facing: Compulsory to 76cm (15 months), recommended to 105cm
Forward-facing: From 76cm onwards
Origin: Designed and engineered in Germany
Awards: ADAC, Stiftung Warentest, Red Dot, AGR certified

Safety & Guidelines

Safe Use Recommendations:

Suitable from 3 months (61cm) or birth with newborn inlay (40cm)
Maximum height: 105cm (approximately 4 years)
Maximum weight: 19kg
Requires Base G for installation and rotation
Rear-facing mandatory until 15 months (76cm) minimum
Extended rear-facing recommended to 105cm for maximum safety
Forward-facing from 76cm when developmentally appropriate
Always use 5-point harness
Never use without proper Base G installation
Regular safety checks of all components

i-Size Regulations:

Complies with UN R129/03 (i-Size) standards
Height-based rather than weight-based sizing
Mandatory extended rear-facing requirements
Enhanced side-impact protection testing
ISOFIX installation required (via Base G)

Why Choose the CYBEX Sirona G i-Size?

ADAC Award-Winning: Tested and awarded by leading independent safety institute
50% Higher Safety: Extended rear-facing up to 50% safer than forward-facing¹
360° Convenience: Revolutionary rotation eliminates back strain (requires Base G)
Modular G System: Use same Base G from birth to 4 years with Cloud G
i-Size Compliance: Latest safety standards with rigorous testing
L.S.P. Technology: Advanced side-impact protection reduces forces by 25%
All-Round Ventilation: Plus option 6x more breathable for cooler rides²
German Engineering: Premium CYBEX quality and innovation
12-Position Headrest: Grows perfectly with your child
5 Recline Positions: Comfort in rear and forward-facing modes

Care & Maintenance

Remove and machine wash covers at 30°C
Wipe plastic shell with damp cloth
Check Base G connection regularly
Inspect harness for wear before each use
Clean buckle with soft brush if needed
Never use bleach or harsh chemicals
Air dry all fabrics - do not tumble dry
Regular safety inspection of all components
Store instruction manual with seat

Complete Your Modular G System

Build the Ultimate Birth-to-4-Years Solution:

Stage 1: Birth to 24 Months

Cloud G i-Size infant car seat
CYBEX Base G (one-time installation)
180° rotation for infant convenience
Travel system compatible with pushchairs

Stage 2: 3 Months to 4 Years

Sirona G i-Size toddler car seat (this product)
Same Base G continues to be used
Full 360° rotation convenience
Extended rear-facing to 105cm

Why the Modular G System?

The Base G is the foundation of the Modular G Family, providing:

One base, two car seats - birth to 4 years
One-time installation - no reinstalling when upgrading
Continuous safety - same secure ISOFIX base throughout
Maximum value - invest in base once, use for four years
Seamless transition - Cloud G to Sirona G in seconds
Space efficiency - no storing multiple bases
Consistent quality - CYBEX engineering throughout

Investment Breakdown:

Base G: One-time purchase
Cloud G i-Size: Birth to 24 months
Sirona G i-Size: 3 months to 4 years
Total system: Complete 4-year solution

Shop Base G to complete your Modular G system today.

Installation with Base G

Simple ISOFIX Setup with Base G:

One-Time Base Installation:

Position Base G on vehicle seat
Connect ISOFIX to vehicle anchor points
Extend load leg to vehicle floor
Check green safety indicators (both ISOFIX and leg)
Base now installed for 4 years

Attaching Sirona G to Base G:

Position Sirona G above Base G
Press down until audible click
Verify secure connection
Rotate as needed for boarding

Why Base G Matters:

ISOFIX provides rigid, secure connection
Load leg prevents rotation in impact
Visual indicators confirm correct installation
Stability and safety throughout four years
Same base from Cloud G to Sirona G
No reinstallation when upgrading seats

Shop Base G Now - Essential for Sirona G i-Size use.

Why CYBEX Sirona G Stands Out

vs Standard Convertible Seats:

✅ 360° rotation (most don't rotate - requires Base G)
✅ Extended rear-facing to 105cm (many stop at 90cm)
✅ Part of modular system (use same Base G from birth)
✅ ADAC award-winning safety
✅ L.S.P. side-impact technology

vs Other Rotating Seats:

✅ Modular G system (Base G continuity from Cloud G)
✅ Multiple independent safety awards
✅ Up to 6x breathability with Plus fabrics²
✅ 12-position headrest (more than competitors)
✅ German engineering reputation
✅ Premium CYBEX design aesthetic

The Base G Advantage:

Unlike seats with integrated bases, the Sirona G's compatibility with Base G means:

One base from birth to 4 years (with Cloud G)
Easy seat upgrades without reinstallation
Space efficiency (no storing old bases)
Cost efficiency (one quality base investment)

Warranty & Support

CYBEX Quality Assurance:

Check warranty terms in user manual
Register product for warranty activation
Original purchaser coverage
German engineering quality standards
Premium construction for longevity

Important Reminder: This car seat requires CYBEX Base G (sold separately) for installation. Ensure you have or purchase Base G to use Sirona G i-Size.

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