Your little one isnt so little any more. When its time to upgrade their car seat Nuna AACE gets the job done with a seat thats as comfortable as it is safe and secure. From the seats fabric to the foam that supports your child each element of this car seat is smartly sourced to be flame-resistant without adding any chemicals that could be harmful to your child. Customizable side-impact protection pods and built-in belt-path indicators combine to provide a safe seat while the adjustable headrest and expandable seat with eight recline positions ensure a comfy ride all the way. from fabric to foam and beyond each element is smartly sourced to be flame resistant with no added fire retardant chemicals customizable recline thanks to 8 different positions ventilation panels within the shell and breathable (and washable!) knit fabric create a comfy climate for even the longest of trips little arms can take a break thanks to cozy built-in armrests.