- All-In-One Car Seat: The CYBEX Eternis S is the only seat your child will need from birth and beyond. Featuring rear-facing, front-facing, and belt-positioning booster modes, the Eternis S is designed for use from birth up to 120 lbs.
- Linear Side Impact Protection: The Linear Side Impact Protection system (L.S.P.) absorbs up to 25% more impact forces in certain crashes when compared to the same car seat without L.S.P. extended.
- Patented Reclining Headrest: The Eternis S headrest helps prevent the child’s head from falling forward while asleep, keeping the head and neck in a safe position. The headrest also features 12 height settings for easy adjustment as your child grows.
- 10-Year Car Seat: The seamless transitions between modes offers up to 10 years of use from your Eternis S. An in-seat recline helps provide correct ergonomic positioning and extra legroom that lets your child ride rear-facing for longer.
- Converts to Booster Seat: Ensure your child has an age-appropriate seat as they grow. Your Eternis S can be converted into a belt-positioning booster seat with a comfortable high back, suitable for children between 40 and 120 pounds.