SKU: 11022552689
cybex research institute

cybex research institute CYBEX Eternis S SensorSafe All-in-One Convertible Car Seat

Sale price$18.13 Regular price$20.14
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Description

cybex research institute CYBEX Eternis S SensorSafe All-in-One Convertible Car SeatThe CYBEX Eternis S with SensorSafe is the only car seat your child will need from their first ride home through every carpool adventure. With its three adaptable modesrear facing, forward facing, and boosterthe Eternis S is designed to protect children from birth up to 120 lbs. Built with CYBEXs signature safety features and thoughtful design, it ensures unparalleled comfort and security for your little one at every stage. From its advanced Linear

The CYBEX Eternis S with SensorSafe is the only car seat your child will need from their first ride home through every carpool adventure. With its three adaptable modes—rear-facing, forward-facing, and booster—the Eternis S is designed to protect children from birth up to 120 lbs. Built with CYBEX’s signature safety features and thoughtful design, it ensures unparalleled comfort and security for your little one at every stage. From its advanced Linear Side-impact Protection (L.S.P.) to the intuitive SensorSafe™ technology that monitors your child’s well-being, this car seat provides peace of mind wherever the road takes you.

What Is SensorSafe? Keeping Your Child’s Safety Front and Center

Equipped with SensorSafe™ technology, the CYBEX Eternis S delivers real-time safety alerts directly to your phone via the SensorSafe app. This innovative chest clip tracks critical safety indicators, such as unbuckling, temperature, and even periods of inactivity, helping you ensure your child’s safety without taking your eyes off the road.

Cybex Eternis S SensorSafe All-In-One Convertible Car Seat Features

3-in-1 Versatility: Switch between rear-facing (4-50 lbs.), forward-facing (22-65 lbs.), and booster (40-120 lbs.) modes to accommodate your child’s growth.
SensorSafe Technology: Safety alerts for peace of mind, including temperature and child unbuckling notifications.
Linear Side-Impact Protection (L.S.P.): Absorbs up to 25% more impact forces in a near side-impact crash.
12-Position Height-Adjustable Headrest: Grows with your child, making adjustments easy with no need to rethread the harness.
Internationally Patented 3-Position Reclining Headrest: Keeps your child’s head in a safe, comfortable position, reducing the risk of forward head slump.
In-Seat Recline and 6-Position Seat Recline: Designed for ergonomic support and extra legroom in the rear-facing position.
Magnetic Buckle Holders: Allows for easy seat entry and exit without searching for the buckle.

Cybex Eternis S SensorSafe All-in-One Convertible Car Seat Weight and Height Limits: How Long Can You Use Cybex Eternis?

Designed to grow with your child, the Eternis S supports rear-facing up to 50 lbs. or until your child reaches 48 inches, forward-facing up to 65 lbs., and then transitions to a high-back booster for children up to 120 lbs. This extended lifespan means your child can enjoy the safety and comfort of the Eternis S for up to 10 years.

Is CYBEX Eternis FAA Approved?

Yes, the CYBEX Eternis S is FAA-approved for air travel, ensuring your child’s safety in-flight. The FAA recommends securing children in an approved child restraint during flights for additional safety during unexpected turbulence. As always, please confirm with your airline before departure and refer to the car seat’s manual for aircraft installation instructions.

Cybex Eternis S SensorSafe All-In-One Convertible Car Seat Manual and Instructions for Installation

Installing the Eternis S is straightforward with CYBEX’s clear, detailed instructions, and it offers LATCH compatibility for secure installation. For a perfect fit and peace of mind, refer to the user manual for guidance on latch, tether, harness, and recline limitations for each mode.

Cybex Eternis S SensorSafe All-in-One Convertible Car Seat Reviews: Why Parents Love It

The CYBEX Eternis S with SensorSafe has received high praise from parents and caregivers who appreciate its seamless blend of safety, comfort, and durability. Many users highlight the SensorSafe technology, noting that it provides an added layer of security, especially for longer drives or busy days. Parents also love the versatile design, allowing them to use one seat for all stages of their child’s growth—from birth up to 10 years. The seat’s sturdy steel-reinforced frame and the unique L.S.P. system are often mentioned in reviews as standout safety features that make parents feel confident in their choice.

Another common highlight is the ease of use. Parents appreciate the adjustable headrest, easy recline options, and magnetic buckle holders, which simplify getting children in and out. Overall, the Eternis S offers long-term value and trusted safety, making it an exceptional investment in your child’s travel safety.

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SKU: 11022552689

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Verified Purchase
Mary Moore
Waukegan, US
★★★★★ 5
Fit great
Size: 8, Color: White
Fit as advertised. Wrinkles steam out easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
G
Verified Purchase
Gretell
Birmingham, US
★★★★★ 5
Perfecto
Size: 7, Color: Light Grey
Tiene muy buena calidad me encantó es como slim queda bello a mi niño le quedó un poco grande pediré otro size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
Z
Zombie Lincoln
Pawtucket, US
★★★★★ 4
good for summer but not true linen
Size: 12, Color: White, Size: 12, Color: White
Took off a star because they aren't linen! They are polyester with some linen and have a slight look of linen. They are thin and see through, so in that aspect its great for summer, but the lining inside the suit would get hot. It is a very nice neutral color that looks sleek. It is worth its price given it is a 3 piece. Needs ironing after arrival, and it is great for recitals and formal weddings and events. Comfortable, lined well, even the pockets are lined! Speaking of which, my son carries his phone and needs pockets at all times. Zipper and buttons work well. Sizing is accurate. There are loops for belt. The bow tie is brught white with 2 silver tiny polka dots! Bow tie is adjustable and easily clips on. Overall recommend it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
A
Arty
Whiting, US
★★★★★ 5
Great suit!
Size: 8, Color: Mint Green, Size: 8, Color: Mint Green
This suit is gorgeous. The color is gorgeous The fit is great. I like pretty much everything about it. I even like the clasp in the bow tie. Way better than the snaps or the hooks… And my son likes it! After telling me he felt embarrassed to wear a suit like two weeks ago, he was actually really liking this one and was trying to think of somewhere he could wear it! *please ignore the straight-out-of-the-package rumpling in the pictures* The fabric is nice. It’s really well made. It still fits a teeny smidge big on my son, but he’ll be in it in no time. It’s a great value. I recommend it.
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Reviewed in the United States on April 19, 2026
B
B
New York, US
★★★★★ 3
THESE ARE NOT LINEN - 70%Polyester, 25% Linen, 5% Spandex
Size: 5, Color: Light Grey
Moms be ware this is NOT LINEN! This is 70% Polyester and 25% linen and 5% spandex, so the listing description and material details are misleading. If you're expecting the super soft, lightweight, breathable linen fabric we know and love , this is not it. This is reminicent of those old school curtains. The suit is cute however; but what boys suit isn't cute for that matter? I would say these run a little big. My son who is 5 normally fits a bit snug in a 5 but the length of a 6 is too long. I ordered a 5 and these are long on him, but the suit jacket fits perfectly. They do seem to be sewn well and constructed with quality in mind. I'm just disappointed by the misleading linen claim
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Reviewed in the United States on April 27, 2026

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