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Description
siege auto cybex sirona CYBEX Sirona S Convertible Car Seat | Infant SeatThe Cybex Sirona S 360 is the ONLY convertible car seat to feature a 360 rotatable seat with load leg stability, linear side impact protection, and SensorSafe technology. This Sirona S 360 rotating convertible car seat is the first model to include an innovative 360 rotatable seat with load leg technology, making switching between rear facing and forward facing positions quick and easy. The Sirona S car seat's load leg stabilizes the seat and can
The Cybex Sirona S 360 is the ONLY convertible car seat to feature a 360-rotatable seat with load leg stability, linear side impact protection, and SensorSafe technology.
This Sirona S 360 rotating convertible car seat is the first model to include an innovative 360° rotatable seat with load leg technology, making switching between rear-facing and forward-facing positions quick and easy.
The Sirona S car seat's load leg stabilizes the seat and can significantly reduce crash forces. These features, combined with an EasyLock bar for quick, simple, and secure installation, offer advanced safety protection for children — and greater peace of mind for parents.
SensorSafe™
The smart-tech harness chest clip with SensorSafe™ technology makes the Sirona S SensorSafe convertible seat even safer, providing alerts when unsafe situations arise — including if a child unbuckles themselves while the vehicle is in motion, if the back seat has become too warm or too cold, if a child has been seated for too long, or if the driver accidentally leaves the child behind after the vehicle has been switched off. These alerts are provided through an installed vehicle receiver and the user-friendly smartphone SensorSafe App.
Product Features :
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An innovative, one-hand 360° rotatable seat allows parents to easily get their child in and out — a signature feature of the Cybex Sirona S 360
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The load leg stabilizes the car seat and can reduce rotation in certain crashes by up to 30%
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The only convertible car seat in North America with a one-time vehicle belt installation for both rear-facing and forward-facing modes
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EasyLock bar reduces the force needed up to 4x for quick, simple, and secure installation
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A smart-tech harness chest clip with SensorSafe technology alerts parents if their child becomes unbuckled, the car temp gets too warm, or unsafe conditions arise
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12-position recline adjustment, even while the seat is in use
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Linear Side-impact Protection absorbs up to 25% more impact in a collision, making the Cybex Sirona S 360 one of the safest convertible car seats
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An anti-rebound design reduces car seat rebound movement
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Magnetic buckle holders make entry and exit from the seat a breeze
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A dishwasher-safe cup holder can be positioned on either side of the seat
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12-position, height-adjustable headrest with no-rethread harness
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Dual-level indicators help ensure the proper car seat angle
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A steel-reinforced frame provides strength and durability
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Harness pads and a 3-position padded buckle provide extra comfort
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Removable newborn insert provides support for small babies
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Innovative one-pull LATCH removal system
- LATCH Connection storage inside the base when not in use
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Rear-facing from 4 lbs. to 50 lbs. Forward-facing from 22 lbs. to 65 lbs. — making the Cybex Sirona S 360 a safe choice as your child grows (when compared to the same car seat without L.S.P. extended)
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SensorSafe is compatible with most vehicles 2008 or newer with an OBD II port. For some electric vehicles, contact Cybex as an additional adapter may be needed
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Measurements of the Sirona S 360 rotating convertible car seat: Forward-facing (Fully upright) 25.5” H x 20” W x 25.3” D Weight: 30.4 lbs.
- Use from birth up to 65 lbs. or 49 inches, following the directions in your user manual
Product Details :
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Group: Convertible Car Seat
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Height: max. 49 in
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Weight: From 4 lbs. up to 65 lbs.
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Age: From newborn to approx. 4 years
- 2-year limited manufacturer's warranty
- Care: Fabrics machine washable cold, delicate cycle, with a mild detergent.
Functions :
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SensorSafe™ Technology
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12-Position Recline
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Linear Side Impact Protection (L.S.P.)
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Anti-Rebound Design
- Magnetic Buckle Holders
Upgrade to the Cybex Sirona S 360 today and experience the Sirona S car seat advantage for unmatched safety and convenience! Order now at Kido Bébé!
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
4.1 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Comfortable chair
Color: Cream, Size: PU Leather(No Wheels)
Ordered this chair for my daughter for Christmas. It's a great chair. It's very comfortable. She wishes it had wheels. I didn't see a way to add wheels to this base, either. Still a good chair. You have to make sure where you put it you can spin to get out of it. Pushing it back and forth on carpet doesn't work well.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Great Office Chair
I purchased this chair to replace the old one in my son's room. I really like the look and style of this chair. It was easy for me to assemble and the riser functions really good and the stability of the base is very good. I like the wide design as it has more back support and seat support.
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Comfortable, Stylish, and Great for Casual Seating
The OLIXIS Criss Cross Legged Chair is a really nice option if you prefer sitting cross-legged or want a wider, more relaxed seating style compared to a traditional office chair. The armless design and wide seat make it easy to shift positions throughout the day without feeling restricted.
Comfort-wise, the padding is decent and supportive for short to moderate sitting sessions. The adjustable height and swivel function work smoothly, and it’s easy to find a comfortable position whether you’re working at a desk, doing makeup, or just using it casually in a bedroom or home office setup.
The minimalist look is also a plus—it blends well with modern decor and doesn’t take up as much visual space as bulky office chairs. Assembly was fairly straightforward and didn’t take long.
One thing to note is that since it has no wheels, it’s not ideal if you need to move around your workspace frequently. Also, while it’s comfortable, it may not be the best choice for long, full workdays compared to a high-back ergonomic chair with more lumbar support.
Overall, this is a stylish and functional chair that works great for light office use, studying, or casual seating—especially if you like the criss-cross sitting position.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Perfect “Hair-Doing” Command Chair
Color: Leather-beige, Size: Luxurious(With Wheels), Color: Leather-beige, Size: Luxurious(With Wheels)
As a physician, mom, and military officer, my mornings already feel like a tactical operation: breakfast, cartoons, and hair time before we roll out. My old high‑back desk chair turned every ponytail into a wrestling match with the chair back. This low‑back, armless chair has officially become my hair‑doing command center.
What I love:
• Low back + no arms = easy kid access.
My daughter sits facing the desk, snuggled in her blanket, eating breakfast and watching TV. I can stand right behind her and actually reach her hair without a chair back or armrests blocking my elbows. No more asking her to twist sideways and slowly slide off the chair while I chase her head.
• Wide, comfy seat for both of us.
The seat is generous and supportive with thick cushions. I have plenty of room and my daughter is perfectly comfortable for our whole morning routine. She’s happy, I’m not bent at weird angles, and the whole process is smoother (and quieter!).
• Looks and feels more expensive than it is.
The faux leather upholstery is gorgeous in person and feels soft and substantial, not flimsy. It blends right in with our bedroom furniture and doesn’t scream “office chair.”
• Thoughtful packaging & painless assembly.
Everything arrived in perfect condition, very well protected in the box. The instructions were clear, all hardware was labeled, and it took me under 10 minutes to assemble by myself.
• Glides & adjusts smoothly.
The chair rolls, swivels, and raises/lowers easily and quietly. No squeaks, no sticking. I can move her closer to the desk or spin her toward me with one hand while holding a hairbrush in the other.
A quick heads‑up:
The chair is on the larger side (which I personally love), so if you’re looking for a tiny, petite chair, check the measurements. For me, the extra space is exactly what I wanted.
Bottom line:
If you also use your bedroom desk as a hair‑doing station, homework hub, or breakfast bar, this chair is a game‑changer. Comfortable, stylish, easy to assemble, and priced competitively with similar chairs—while actually making our chaotic mornings run a little smoother.
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Reviewed in the United States on December 10, 2025
★★★★★ 5
The perfect desk chair for sitting cross-legged—plus it rolls!
Color: Leather-beige, Size: Luxurious(With Wheels), Color: Leather-beige, Size: Luxurious(With Wheels)
This chair is absolutely amazing if you like to sit cross-legged while working. The seat is incredibly wide, giving you plenty of room to get comfortable without feeling cramped against the armrests. The smooth faux leather is awesome. I am honestly impressed with the price vs quality. The padding is nice for my 13 yr old daughter to sit cross legged on. The cushion is thick and supportive, and it has held its shape really well without flattening out. I also love that this specific model has wheels—a lot of these wide cross-legged chairs come with flat bases, so having the mobility to roll around my desk space is a huge plus. It looks high-end, feels sturdy, and was very straightforward to assemble. 10/10 recommend!
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Reviewed in the United States on May 23, 2026