SAFETY is paramount, with Linear Side Impact Protection built into the shell and an easy to use, secure SAFELOCK base with one hand release COMFORT with an 11 position adjustable headrest featuring no rethread harness and easy in buckle LIGHTWEIGHT and extremely portable at just 9 lb., this FAA compliant travel car seat is perfect for airplanes without use of the base GROWS WITH YOUR CHILD up to 35 lb., with a removable newborn insert and adjustable headrest built into the baby car seat XXL UPF50plus SUN CANOPY and in shell air ventilation built into the baby seat provide shade and natural airflow to keep them safe and cool FR CHEMICAL FREE fabric in these infant car seats passes federal safety standards without the use of chemical fire retardants COMPATIBLE with all CYBEX baby stroller models to create a convenient travel system for your family