The CYBEX Eternis S with Sensor Safe 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. The Sensor Safe technology integrates important next-gen safety features into the chest clip of the car seat to alert you when unsafe situations arise.

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.

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. SensorSafe is compatible with most vehicles 2008 or newer with an OBD II port.

GROWS WITH YOUR CHILD: Convertible car seat designed to grow with your child from 5 to 65 pounds. In-seat recline adjusts to multiple positions so your child can safely ride front-facing up to 65 pounds and rear-facing up to 50 pounds

SAFETY FEATURES: Keep baby safe with 5-point safety harness and linear side-impact protection. Linear side-impact protection system absorbs up to 25% more impact

ADJUSTABLE HEADREST: 12-position height-adjustable headrest offers comfortable protection as your child grows. Headrest recline prevents sleepy heads from falling forward outside of the headrest safety zone

EASY CLEAN UP: Removable cup holder can be positioned on either side and is dishwasher-safe for easy cleanup. Fabric cover is machine washable for simple maintenance

SENSORSAFE TECHNOLOGY: SensorSafe Technology provides essential alerts to your smartphone when unsafe conditions arise