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Description
cybex sirona height limit CYBEX Sirona T i-Size 360° Rotating Car SeatCYBEX 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
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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Smells Amazing and Works Fabulous!
Sun protection factor: 50 Sun Protection Factor (SPF), Size: 8 Fl Oz (Pack of 1)
I love the smell of Hawaiian Tropic sunblock. Not only does it smell delicious, it lasts better than any others I have used. I put it on and wait for at least 15 minutes before going into the sun so it can set in. When I am outside I reapply about once an hour. If I am in the water I tend to reapply at least every 45 minutes. This product does its job without being greasy or heavy.
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Excellent product
Sun protection factor: 50 Sun Protection Factor (SPF), Size: 8 Fl Oz (Pack of 1)
It smells nice and stays on all day
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
This has become my go to daily sunscreen
Size: 1.7 Ounce (Pack of 1)
After first purchasing a year ago, this has become my daily go-to facial sunscreen while others just sit taking up space in my medicine cabinet.
I have sensitive skin and severe reactions to chemical sunscreen and have been searching for the perfect mineral sunscreen for several years after starting tretinoin made my reaction to chemical sunscreen intolerable. I only recently figured out I am also highly sensitive to chemical boosters found in a lot of mineral sunscreens. Especially Butyloctyl salicylate. That one is a no-go for me and until I learned about chemical boosters found in a lot of "100 % mineral" sunscreens, could not figure out why some of my sunscreens made my face flush red and feel like it was on fire when I was in the sun. Lab Muffin is my hero.
My skin is dry, mature, and sensitive with some lines/wrinkes, large pores, and rosacea. At first I thought this Sun Bum tinted mineral would be too drying as it has a very light texture vs being creamy. But it is not and the texture makes for a light but effective formula.
PROS:
- Mineral formula with no chemical boosters.
- Does not settle in pores and wrinkles. After applying it settles slightly in lines, but a quick blend with a blending brush and it is good for the day.
- Blends easily into hairline and brows.
- Does not sting my eyes when I sweat and seems relatively sweat proof.
-Does not transfer tint to clothes once it dries down. Even when I wipe away sweat.... nothing seems to come off. It is the only tinted mineral I have tried with little to no tint transfer.
- Blends easily with a very soft silky texture that allows you to blend without any tugging on the skin like a lot of mineral formulas.
- Matte finish but with a subtle glow.
- Tint provides light coverage to even out skin, though does not cover everything. As someone who rarely wears makeup I appreciate the subtle coverage which does not look overdone but helps my skin look better.
- Does not emphasize occasional tretinoin dry patches. Some of my other sunscreens (even tinted) seem to make dry patches look worse. This formula covers them without emphasizing (or irritating) them.
- Does not feel heavy on my skin. I can't stand feeling sunscreen on my face (or anything which is the main reason I do not wear much makeup) and this formula is so light once it is on I forget it is there.
-Light coverage lasts all day if I don't sweat. Needs some reapplication when sweating.
-Does seem to provide SPF 30 coverage. With reports about sunscreens underperforming lately, this one does appear to work. I can burn in less than 15-20 minutes in full sun, but no problems with this sunscreen when reapplied after sweating or long sun exposure (I work outdoors as a field biologist, so this one is huge. While I usually wear a hat, it does not cover everything as I cannot use a wide brim hat for my work.)
CONS:
- The tube. It is not awful, but I always seem to get a build up of product in the cap no matter what I do. This seems like a waste of product, but is really a minor complaint.
- It does separate, but states clearly to shake before use. It seems to mix easily, so this is not really a con, just a warning to give it a good shake.
- Would love an option for an SPF 50, but again, minor complaint.
Overall, this is by far the best mineral facial sunscreen I have found so far for my particular skin and is used daily. The only reason I ever use anything else is to try to use them up. Other brands I have tried include: Undefined R&R sun serum SPF 50 ( a little too "glowy", emphasizes pores, and has niacinimide which I have to use with caution), Naked Sundays Collagen Glow mineral sunscreen SPF 50 (heavier and feel it on skin, but is my go-to when I must have SPF 50), CoTZ Flawless Complexion SPF 50 (feels heavy and not waterproof. Also even though I can'y find any chemical boosters in ingredients, something in this one makes my skin feel like it is on fire when in the sun), Cocokind daily SPF 32 (ok for a non tinted formula as not much whitecast, but does feel heavier than I would like), Murad City Skin Age Defense SPF 50 ( just too expensive), Koh Gen Do Watery Spa UV SPF 50 (my go-to non tinted formula these days though I still feel it on my skin and not waterproof and think it has been reformulated recently), Vanicream Facial Moisturizer SPF 30 (too thick and heavy), Hero Force Shield SPF 30 (was my favorite next to the Sun Bum until I realized the reaction in the sun was from the chemical booster Butyloctyl salicylate 😩), Agency SilkScreen SPF 50 (was ok, a bit too greasy and not much coverage, but went to back of pack as it has chemical boosters), Haruharu Wonder Black Rice Pure Mineral SPF 50 (I loved this formula and purchased several times before finally learning the reaction in the sun was from chemical boosters), Cetaphil Sunscreen Face Drops SPF 50 (quit using due to flaming face in sun as this one also has chemical boosters), and Etude Sunprise SPF 50 (only used ocassionally due to fragrance, but liked this formula until I clued into chemical boosters).
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Reviewed in the United States on November 15, 2025
★★★★★ 5
Love love love!
Size: 1.7 Ounce (Pack of 1), Size: 1.7 Ounce (Pack of 1)
I’m a big hyram fan and after I found out dear clairs and other Korean chemical sunscreen might not be as effective as claimed, I bought this product off of his recommendation. I was a little nervous about a few things.
For one I have the worlds Oiliest skin. I felt like dear klairs (my old sunscreen) did leave a bit of shine but it had controlled my oil better than any other sunscreen I tried... until now. This is the closest my skin has ever looked to “normal” as far as oiliness goes so props to that!
I also was hesitant on this product because of the tint but also didn’t want a white cast. I would say I’m light to medium with an olive undertone and I think it matches my skin really well! It almost looks like I have makeup on bc my skin tone much more even , but it doesn’t cover breakouts. I happened to have a few pimples (already had them ,not caused by the sunscreen) so you can see that the sunscreen doesn’t cover them completely but blurs/evens out the clear part of my skin. There is a slight white cast but I think the tint offsets it. . I couldn’t speak for other skin tones but I think if you’re light to medium/olive it matches really really well.
Finally I love the texture, it’s almost velvety and doesn’t pull on the skin which I hate in a face sunscreen. Not too thick not too watery, and just feels nice to apply. So I don’t really have anything bad to say about this product, but I’ve only had it two days so I’ll have to see if it causes any breakouts ect. But so far I would highly recommend!
Update: I have been using this for well over a year now, and I can never go back to anything else! It doesn't cause breakouts even when I've slept with it on by accident. I use it instead of a primer under my foundation, and it works amazing. I literally have no complaints; I have not gotten a sunburn since I started using this. I just reapply every few hours when I'm at the beach/pool. I love reapplying because it controls my oil and gives that blurred bb cream effect, I'm also able to put it under my eyes/on my eyelids without burning my eyes. I was never someone who got compliments on my skin, but that changed when I started using this along with the rest of my skincare routine (Shoutout Hyram!) I'm so glad I found this product!
2024 Update!
Still loving and using this sunscreen! I decided to try a couple of different brands earlier this year just because I hadn't ever branched out after finding this product, but this remains the best-tinted sunscreen for oil control and pore blurring I've ever tried!
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Reviewed in the United States on March 20, 2021
★★★★★ 5
Great tinted physical sunscreen
Size: 1.7 Ounce (Pack of 1)
This is my new favorite sunscreen. It goes on matte, but is still easy to put on/not pasty. The tint is enough to get rid of the ghost look but not so much that it looks like fake tanner. It's a bit greasier feeling than I'd like but it doesn't look greasy at all so I'll take it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
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