Eternis S

Eternis S All-In-One Car Seat


Convertible Car Seat


From 5lbs up to 65 lbs


From newborn to approx. 4 years or 49 inches

Eternis S Pepper Black Eternis S Manhattan Grey Eternis S Denim Blue Eternis S Lavastone Black

Protection that Grows

The CYBEX Eternis S All-In-One Car Seat offers 10 years of use in one easy-to-use package – making it the only car seat your child will need, from birth and beyond. Suitable from 4 lbs. up to 120 lbs., the Eternis S offers 3 stages of protection – as a rear-facing infant seat up to 50 lbs., a forward facing convertible seat and then as a belt-positioning booster that lasts through your child’s first 10 years of age.

The Eternis S offers an adjustable Linear Side-impact Protection (L.S.P. System), which absorbs up to 25% more impact forces in the event of a side impact collision* and a patented 3-position reclining headrest, which helps prevent the child's head from falling forward while asleep, guiding the head and neck into a safe position. These features, combined with a steel reinforced frame for strength and durability provide advanced child safety protection and peace of mind.

Protection that grows with your child – use Rear-facing from 4 lbs. to 50 lbs. Forward-facing from 22 lbs. to 65 lbs. and as a Belt-positioning Booster from 40 lbs. to 120 lbs.

In-seat recline allows your child to safely ride rear-facing for longer

Linear Side Impact Protection System helps absorb up to 25% more impact forces* *when compared to the same car seat without L.S.P. extended

Patented headrest recline helps prevent sleepy heads from falling forward outside of the headrest safety zone

12-position adjustable headrest with integrated no-rethread harness

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