Nuna AACE Booster Seat


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

The customizable side impact protection pods and belt path indicators make riding super secure. They’ll enjoy wearing a seat-belt just like you do. And you’ll be happy because you know they’re safe. And comfy. When you have an adjustable headrest, and an extendable, expandable seat with eight recline positions, how could they not be?

Join the grow-volution.

  • 3D growth™ system is...
    • grow up- one-hand, 9 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
  • Comfy, built-in arm rests
  • Includes dishwasher-safe cup holder
  • Ventilation panels within the shell and breathable (and washable!) knit fabric create a comfy climate for even the longest of trips


  • Recommended use for high back booster: 40 to 110 lbs, 38 to 60 in, suggested usage 4+ yrs
  • Recommended use for no back booster: 50 to 120 lbs, 38 to 60 in, suggested usage 5+ yrs
  • Product: h 22.5 x w 12 x l 14.5 in
  • Product weight: 15.6 lbs


Sign up today!