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Description
cybex sirona s cover Cybex Sirona S SensorSafe Convertible Car Seat – Twinkle Twinkle Little OneThe CYBEX Sirona S is the ONLY convertible car seat to feature a 360 swivel seat with a load leg, linear side impact protection, and SensorSafe technology. Built into the chest clip, SensorSafe provides real time in app alerts when potentially unsafe situations arise including if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind. These features offer advanced
The CYBEX Sirona S is the ONLY convertible car seat to feature a 360° swivel seat with a load leg, linear side impact protection, and SensorSafe technology. Built into the chest clip, SensorSafe provides real-time in-app alerts when potentially unsafe situations arise including if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind. These features offer advanced safety protection for children and greater peace of mind for parents.
- ONE-HAND 360° SWIVEL SEAT: For easy loading and unloading of your child
- LOAD LEG: Absorbs energy and reduces crash forces on the child by up to 30% in a front impact collision*
- ONE-TIME VEHICLE BELT INSTALLATION: Allows seamless transition from rear-facing to forward-facing mode without having to re-install
- EASYLOCK™ BAR: Reduces force needed up to 4x for quick, simple and secure installation
- SENSORSAFE TECHNOLOGY: Bluetooth enabled chest clip sends mobile app alerts if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind
- 12-POSITION ON THE FLY RECLINE: Adjust even when the seat is in use
- LINEAR SIDE-IMPACT PROTECTION (L.S.P.): Reduces collision forces by up to 25% in a side impact crash*
- ANTI-REBOUND BASE: Reduces rebound forces in a rear or front impact crash
- REAR-FACING LONGER: Up to 50 lbs.
- MAGNETIC BUCKLE HOLDERS: Keeps harness out of the way for easy loading and unloading of your child
- DISHWASHER SAFE CUP HOLDER: Can be positioned on either side of seat
- 12-POSITION ADJUSTABLE HEADREST: Harness adjusts with the headrest for a proper fit as your child grows
- DUAL-LEVEL INDICATORS: Clearly indicate the proper car seat angle from either side of the seat
- STEEL REINFORCED FRAME: Provides strength and durability
- 3-POSITION PADDED BUCKLE: Allows for a secure fit while providing extra comfort for your growing child
- REMOVABLE INFANT INSERT: Ensures proper fit and support for babies
*As compared to the same car seat without this feature
Usage
- Child Age Minimum: newborn
- Child Age Maximum: 8 years
- Child Weight Minimum: 4 lbs.
- Child Weight Max: 65 lbs.
- Rear-Facing Mode Weight Limitation: 4-50 lbs.
- Rear-Facing Mode Height Limitation: 17"-49"
- Forward-Facing Mode Weight Limitation: 22-65 lbs
- Forward-Facing Mode Height Limitation: 28-49 in
- Forward-Facing Mode Age Limitation: at least 22 lbs
- Forward-Facing Mode Fit Limitation: top of ears below the top of the headrest
Specifications
- Dimensions: 24.5"D x 19"W x 25.5"H
- Weight: 30.4 lbs.
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
4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Reliable overnight protection with minimal leaks
Size: Size 6, Unit Count: 112
These have been very reliable for overnight use. They hold a lot without leaking, even after a full night of sleep. The fit is secure around the legs and waist without leaving marks. I also appreciate that they don’t have a strong scent. Compared to other brands I’ve tried, these seem to last longer before needing a change. Only minor downside is they can feel a bit bulky when very full, but that’s expected for the absorbency.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Just works for us!
Size: Size 1, Unit Count: 44
Had to transfer from Huggies and Pura because our son kept leaking through those, despite trying all the tips and tricks.
Needless to say we’re really pleased with these! They’re WAY more absorbent. Only downside is that it’s not designed for sensitive skin, but diaper rash cream always does the trick for our little guy
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Love
Size: Size 5, Unit Count: 24, Size: Size 5, Unit Count: 24
Def my fave amongst the diapers, parents choice leak and these just don’t do that and they don’t leave a rash like some other off brands do
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Outstanding, top of the line diaper!
Size: Size 1, Unit Count: 252
We normally use Huggies Little Movers with our 3.5 year old (nothing against them, they're also great diapers) but recently decided to give Swaddlers a try, and will not be going back. This is a top-of-the-line diaper and excels in all ways.
We use a size 7 though could *probably* get away with a size 6, and use about 4-5 diapers a day on average (not including his overnight diaper) depending on how much he's had to drink and how often he poops -usually once a day, but could be as many as 3 times, especially if he doesn't go one day.
The first thing you notice about these diapers is how soft they are. I mean, they just feel like they would be comfortable on a child, and since they're in them practically 24/7, that's important. The diaper is mostly white, and the overall designs are more muted than a lot of other diapers, with "Shilo and Friends" -an elephant and duck - on the front and back. I personally wouldn't mind something bolder, I don't think my child cares or even notices. There is a wetness indicator that goes down the length of the diaper, front and back. Nice to have I suppose for a caregiver who maybe doesn't change a lot of diapers, but at this age and stage, it's easy to know and tell. Like all Pampers diapers, they are scented. I happen to love the gentle powder-like scent, but it's a turn-off to some who describe it as too strong, and of course, if your child is sensitive to that, you may want to avoid Pampers diapers.
Inside, the top sheet liner keeps his skin dry, even when he wets heavily -which is usually - and does a good job of keeping poop from sticking to his bottom. The "blowout barrier" in the back also helps contain any messes. In terms of absorbency, I'm pretty amazed at how much they can hold. Being a little older, he tends to stay drier for longer periods and then pee a larger amount at one time, but the diaper almost always holds it in, and leaks are rare.
The one thing I wish that Pampers did do was have wider tapes, like Huggies, at least on the larger sizes, where kids are more active. It hasn't been a problem, so I don't really have a reason for saying that, other than that it seems like it would help with fit, but it certainly won't keep me from buying or using them in the future.
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Reviewed in the United States on October 21, 2023
★★★★★ 5
Cuidado
Size: Size 6, Unit Count: 112
Exelente calidad
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Reviewed in the United States on May 22, 2026