Nuna AACE Booster Car Seat


The Nuna AACE Booster Car Seat is made with the 3D growth system that allows ride safely even with their biggest growth spurts. 

The Nuna AACE Booster Car Seat includes a 9 position headrest, an expanding shoulder restraint and an expandable seat with 3 varying depths to ensure that growing legs are supported at all times.When they continue to grow, the booster seat easily converts into a backless seat. 

Safety features include extra side impact protection pods on either side of the booster seat, seat belt positioner aids to ensure the safest fit every time and LATCH connectors that connect the seat directly to the car for a secure fit. Built for comfort, the Nuna AACE Booster Car Seat boasts built-in armrests, 8 position recline, ventilation panels, breathable fabrics and a machine washable cup holder. 


  • 3D growth™ system
  • converts from a high back to a no back booster
  • energy absorbing foam and SIP pods take side impact security to the next level
  • belt positioner aids in correct shoulder belt routing and minimizes user error
  • colored belt path indicators help decrease risk of user error
  • lower anchor connectors easily secure car seat to vehicle seat during use or transport
  • 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
  • in high back mode only when using lower anchor connectors
  • sleek and chic micro-knit fabric is easy to remove and machine washable
  • included cup holder is removable and dishwasher safe
  • AACE starter kit includes a cup holder, belt positioning clip & a set of LATCH guides (included with purchase)

Nuna AACE Booster Car Seat Specifications

Full Back Mode

  • Weight Restrictions: 40 to 110 lbs
  • Height Restrictions: 38 to 60 in
  • Suggested Usage: 4 years +
  • Overall Seat Dimensions: h 33 x w 22.5 x  15 in
  • Product Weight: 15.6 lbs

Backless Mode

  • Weight Restrictions: 50 to 120 lbs
  • Height Restrictions: 38 to 60 in
  • Suggested Usage: 5 years +
  • Overall Seat Dimensions: h 26 x w 21.5 x l 15 in
  • Product Weight: 15.6 lbs
  • Warranty: 1 year

Shipping Information

Free shipping on orders over $49 is available to Strolleria customers in the lower 48 states. We do not offer shipping outside the continental United States.

Most Strolleria orders are shipped via FedEx Ground from our warehouse in Scottsdale, Arizona within 1-3 business days of the order time. Custom products such as Bugaboo and Mima strollers may require additional fulfillment time due to their complexity. 

See this page for more details about shipping, including estimated arrival times to your location.

Return Policy

Strolleria accepts returns of new, unused items that are returned to us within 60 days of receipt. 

Because safety is a top priority for us and all new parents, Strolleria only accepts returns of items that have never been used. Items must be returned in the same condition in which you received them, including the original packaging.

Furniture pieces are final sale and cannot be returned or exchanged. 

All products sold by Strolleria are covered under a manufacturer's warranty. If the product is defective or becomes damaged during the warranty period, the manufacturer will send a repair or replacement part at no cost.

Visit this page for our complete return policy.