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Nuna AACE Booster Seat - Granite

From cute pre-schooler to independent pre-teen. It’s the longest and shortest time, and AACE grows right along with your child. 

They’ll enjoy wearing a seatbelt just like you do. And you’ll be happy because you know they’re safe. And comfy. When they have an adjustable headrest, and an extendable, expandable seat with eight recline positions, how could they not be?


3D growth™ system

2-in-1 design

Customizable recline with one-hand, 9 position headrest

Side impact protection (SIP) pods

Comfy, built-in arm rests

Included dishwasher-safe cup holder

Included AACE starter kit

AACE allows you to re-think the way your child rides with a seat that grows just like they do. 

3D growth system is... 

Grow up | one-hand, nine position height adjustable headrest 

Grow out | shoulder system works simultaneously with the headrest, expanding out while growing up 

Grow on | seat sports 3 depths giving growing legs plenty of support and space 

Converts from a high back to a no back booster 

Energy absorbing foam and SIP pods take side impact security to the next level 

Lower anchor connectors allow for 8 position recline in high back mode & easily secure car seat to vehicle seat during use or transport 

Belt positioner aids in correct shoulder belt routing and minimizes user error 

Colored belt path indicators help decrease risk of user error 

Ventilation panels within the shell and breathable (and washable!) knit fabric create a comfy climate for even the longest of trips


Product specifications:

Recommended use for high back booster: 40 to 110 lbs | 38 to 60 in, suggested usage 4 years +

Recommended use for no back booster: 50 to 120 lbs | 38 to 60 in, suggested usage 5 years +

Overall seat dimensions (highest position - HBB): h 33 x w 22.5 x l 15 in

Overall seat dimensions (lowest position - HBB): h 26 x w 21.5 x l 15 in

Product weight: 15.6 lbs