All-in-One Convertible Car Seat - Blue Pistons ERGOBABY It features three mattress height

It features three mattress height positions

Installing the Callisto G 360 is effortless and secure thanks to its SafeLock system

slider adjustments for convenience and crossable shoulder straps and lumbar support for comfort

The recline can be adjusted with one hand

Headrest and harness adjust together while your child is in the seat with the front-adjust No-Rethread Simply Safe Adjust Harness System

All-in-One Convertible Car Seat - Blue Pistons ERGOBABY It features three mattress heightPerfect for growing families, this All in One Convertible Car Seat offers versatility and safety as your child grows. Designed to fit infants to toddlers, it provides rear facing, forward facing, and belt positioning booster options. Engineered for safety, this car seat meets federal safety standards and is a space saver that fits three seats across the back of most vehicles. Rear facing: 540 lbs. and 1940 Forward facing: 3065 lbs. and 34. 449 Belt