Cybex Sirona T i-Size 360° Rotating Toddler Car Seat
Cybex Sirona T i-Size 360° Rotating Toddler Car Seat
Available to Order - Dispatched Soon
Couldn't load pickup availability
CYBEX Sirona T i-Size 360° Rotating Toddler Car Seat
Extended Rear-Facing Convertible Car Seat - Birth to 105cm (Approx. 4 Years)
Experience the ultimate in safety and convenience with the CYBEX Sirona T i-Size 360° Rotating Toddler Car Seat. This innovative convertible car seat combines extended rear-facing protection with revolutionary 360° rotation, making every journey comfortable for your child and effortless for you from birth through to approximately 4 years.
What's Included with the Sirona T i-Size
Complete Car Seat Package:
- CYBEX Sirona T i-Size rotating car seat
- Newborn inlay for use from birth
- 12-position height-adjustable headrest
- Integrated Linear Side-impact Protection (L.S.P.)
- 5-position recline system
- 5-point safety harness with automatic adjustment
- Breathable comfort fabrics
- Machine-washable seat covers
- Detailed instruction manual
Please Note: The 360° rotating ISOFIX Base T is sold separately and is required for installation and rotation function. The Sirona T cannot be installed using a vehicle seat belt.
Key Features & Benefits
Full 360° Rotation
- Complete 360° rotation for effortless access (requires Base T - sold separately)
- Rotate to car door in rear-facing position for easy loading
- Switch to forward-facing and rotate for convenient access
- One-handed operation with smooth mechanism
- Click stops every 90° for secure positioning
- No back strain or awkward reaching
- Perfect for managing active toddlers in tight spaces
Extended Rear-Facing Safety
- Rear-facing from birth to 105cm (approximately 4 years)
- Up to 5 times safer than forward-facing for young children
- Protects developing neck and spine
- Reduces impact forces in frontal collisions
- Follows latest pediatric safety recommendations
- Extended protection during crucial development years
- Forward-facing option available from 76cm when appropriate
Birth to 4 Years in One Seat
- Suitable from birth with included newborn inlay
- Grows with your child to 105cm (approximately 4 years)
- No need to purchase multiple car seats
- Long-term investment in safety and convenience
- Seamless progression from infant to toddler
- Maximum value from single seat purchase
- Sustainable choice reducing waste
i-Size Safety Excellence
- Meets latest i-Size (R129) safety regulations
- Height-based sizing for accurate fit
- Enhanced side-impact protection standards
- Rigorous crash testing exceeds requirements
- ISOFIX installation with Base T ensures stability
- Engineered and tested in Germany
- ADAC tested and approved
Linear Side-Impact Protection (L.S.P.)
- Advanced energy-absorbing technology
- Reduces collision forces by up to 25%
- Adjustable side-impact protectors
- Protects head, neck, and upper body
- Extends automatically when installed on Base T
- Additional safety layer beyond standard requirements
- Premium protection in all seating positions
5-Position Recline System
- Five comfortable recline positions
- Suitable for sleeping and awake toddlers
- Easy one-hand recline adjustment
- Works in both rear and forward-facing modes
- Prevents head slump during naps
- Comfortable for long journeys
- Harness automatically adjusts with recline
12-Position Adjustable Headrest
- Grows with your child from birth to 4 years
- 12 height positions for perfect fit
- Integrated harness adjustment system
- One-handed operation for quick changes
- Ensures proper head protection at all stages
- No threading harness through slots
- Automatic harness height adjustment
Premium Comfort Features
- Breathable fabrics for temperature regulation
- Padded seat and harness for comfort
- Generous padding around head and body
- Soft-touch materials gentle on skin
- Available in Comfort and Plus fabric options
- Ergonomic design for proper posture
- All-season comfort for year-round use
Compatibility
Base Compatibility:
- ✅ CYBEX Base T - Required for installation (sold separately)
- ✅ CYBEX Base Z2 - Also compatible
- ❌ Cannot be installed with vehicle seat belt
- ❌ Not compatible with other bases
Part of T-Line Modular System:
- Use Base T with Cloud T i-Size (birth to 24 months)
- Continue using same Base T with Sirona T (birth to 4 years)
- Single base investment lasts from birth to 4 years
Vehicle Compatibility:
- ✅ All vehicles with i-Size seating positions
- ✅ Vehicles with ISOFIX anchor points and Base T
- ⚠️ Check vehicle compatibility list before purchase
Understanding Comfort vs Plus Fabrics
The CYBEX Sirona T i-Size is available in two fabric options:
Comfort Fabric
- Premium polyester fabric
- Soft, comfortable seating surface
- Excellent breathability
- Machine washable at 30°C
- Available in 2 colourways
- Excellent quality at accessible price point
Plus Fabric (Premium Option)
- Advanced 3D mesh fabric inserts
- Enhanced breathability for superior comfort
- Reduces humidity and prevents moisture buildup
- Ideal for warmer climates or summer babies
- Available in 5 premium colourways
- Typically £30-40 more than Comfort version
- Machine washable at 30°C
Safety & Guidelines
Safe Use Recommendations:
- Suitable from birth (45cm) to 105cm (approximately 4 years)
- Maximum height: 105cm
- Requires Base T or Base Z2 for installation
- Rear-facing recommended until at least 15 months (legal minimum)
- Extended rear-facing to 105cm strongly recommended for safety
- Forward-facing from 76cm onwards (when developmentally appropriate)
- Always use 5-point harness
- Regular safety checks of all components
- Never use without proper base installation
Rear-Facing vs Forward-Facing:
- Rear-facing (birth to 105cm): Up to 5x safer in crashes
- Forward-facing (76-105cm): Available when child ready
- Extended rear-facing strongly recommended by safety experts
- Child can rear-face comfortably with legroom
i-Size Regulations:
- Complies with ECE R129 (i-Size) standards
- Height-based rather than weight-based sizing
- Mandatory extended rear-facing requirements
- Enhanced side-impact protection
- ISOFIX installation required
Perfect For
- Parents wanting maximum safety with extended rear-facing
- Families seeking birth-to-4-years single seat solution
- Those with Base T continuing from Cloud T i-Size
- Active toddler parents needing rotation convenience
- Safety-conscious families prioritising crash protection
- Parents with back issues benefiting from rotation
- Design-conscious buyers wanting premium aesthetics
- Long-term value seekers avoiding multiple seat purchases
Technical Specifications
- Safety standard: ECE R129 (i-Size)
- Age/Height range: Birth (45cm) to 105cm (approximately 4 years)
- Rear-facing: Birth to 105cm
- Forward-facing: 76cm to 105cm
- Installation: ISOFIX with Base T or Base Z2 (sold separately)
- Rotation: Full 360° with Base T
- Side-impact protection: Linear Side-impact Protection (L.S.P.)
- Headrest positions: 12 adjustable heights
- Recline positions: 5 positions (rear and forward-facing)
- Harness: 5-point with automatic adjustment
- Weight: Approximately 8-9kg (seat only)
- Origin: Designed and engineered in Germany
Why Choose the CYBEX Sirona T i-Size?
- Birth to 4 Years: Single seat from newborn to preschooler - maximum value
- 360° Convenience: Revolutionary rotation in rear and forward-facing modes
- Extended Rear-Facing: Up to 5x safer protection to 105cm
- i-Size Safety: Latest safety standards with rigorous crash testing
- German Engineering: Premium quality and innovative design
- L.S.P. Technology: Advanced side-impact protection reduces forces by 25%
- Part of Modular System: Use with existing Base T from Cloud T i-Size
- 12-Position Headrest: Grows perfectly with your child
- 5 Recline Positions: Comfort for sleeping and awake toddlers
Care & Maintenance
- Remove and machine wash covers at 30°C
- Wipe plastic shell with damp cloth
- Check Base T 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
Extended Rear-Facing: Why It Matters
The Science of Safety:
In a frontal collision (70% of serious accidents), forces are distributed differently:
Forward-Facing Child:
- Head thrown forward with extreme force
- Immature neck and spine vulnerable to injury
- Harness must restrain entire body weight
- Higher risk of head and spinal injuries
Rear-Facing Child:
- Impact forces spread across entire back
- Car seat shell protects head, neck, and spine
- Body supported by seat during collision
- Up to 5 times safer in crashes
Why Extended Rear-Facing to 105cm?
- Child's neck not fully developed until age 4-6
- Muscles and ligaments still strengthening
- Head proportionally larger and heavier
- Maximum protection during crucial growth
- International safety experts recommend
- Swedish standard (world's safest) promotes extended rear-facing
Common Concerns Addressed:
- ✅ Legroom: Children comfortable with bent legs
- ✅ Car sickness: No higher risk rear-facing
- ✅ View: Many children prefer rear-facing
- ✅ Developmental: Rear-facing doesn't hinder development
The Sirona T makes extended rear-facing easy with 360° rotation access and multiple recline positions.
From Cloud T to Sirona T: Seamless Transition
Your T-Line Journey:
Stage 1: Birth to 18-24 Months
- Use Cloud T i-Size on Base T
- 180° rotation for infant convenience
- Travel system compatibility with pushchair
- In-car recline function
Transition Time: 18-24 Months
- Child approaches 87cm height limit for Cloud T
- Purchase Sirona T i-Size
- Remove Cloud T from existing Base T
- Click Sirona T onto same Base T
- No reinstallation needed
- Immediate 360° rotation benefit
Stage 2: 18 Months to 4 Years
- Extended rear-facing to 105cm
- Full 360° rotation convenience
- 12-position headrest grows with child
- Forward-facing option when appropriate
- Use until approximately age 4
The Base T Advantage:
- Install once, use for 4 years
- No learning curve with new base
- Consistent safety and convenience
- Maximum value from single base
- Sustainable choice
Available Colourways
Comfort Fabric Colours (2 options):
- Sepia Black - Sophisticated deep black
- Mirage Grey - Contemporary neutral grey
Plus Fabric Colours (5 options):
- Leaf Green - Fresh, modern green
- Platinum White - Clean, elegant white
- Peach Pink - Soft, gentle pink
- Mirage Grey - Neutral grey with enhanced breathability
- Sepia Black - Deep black with premium mesh inserts
All colourways feature CYBEX's signature premium construction and coordinate beautifully with the T-Line system and CYBEX pushchairs.
Why Parents Choose Sirona T Over Competitors
vs Standard Convertible Seats: ✅ 360° rotation (most don't rotate at all) ✅ Extended rear-facing to 105cm (many stop at 90cm) ✅ Part of modular system (use same base as infant seat) ✅ German engineering standards ✅ L.S.P. technology superior to basic seats
vs Other Rotating Seats: ✅ Part of T-Line system (base continuity) ✅ Premium fabric options ✅ 12-position headrest (more than competitors) ✅ 5 recline positions ✅ Proven CYBEX safety reputation ✅ Aesthetic design premium
vs Budget Options: ✅ Superior crash test results ✅ Rotation prevents daily back strain ✅ Premium materials last through multiple children ✅ Higher resale value ✅ Peace of mind worth investment
The CYBEX Difference
CYBEX doesn't just meet safety standards - they redefine them. As pioneers of rotating infant carriers (since 2018) and extended rear-facing advocates, CYBEX combines German engineering precision with real parent needs.
Innovation Leadership:
- First rotating infant car seat (2018)
- Advanced L.S.P. side-impact technology
- Modular system thinking
- Award-winning designs
Safety Excellence:
- Exceeds minimum requirements
- Independent crash test winner
- Real-world accident analysis
- Continuous improvement philosophy
Design Philosophy:
- Function drives form
- Parent-centric features
- Premium materials standard
- Aesthetic without compromise
Experience the perfect combination of extended rear-facing safety, 360° convenience, and birth-to-4-years value with the CYBEX Sirona T i-Size - where German engineering meets modern parenting.
Requires Base T or Base Z2 (sold separately). i-Size approved (birth to 105cm). 360° rotation. Extended rear-facing. Premium German engineering. Read more at cybex-online.com












