Details & care
With nine head/shoulder positions, as well as three seat depths and eight recline positions, this booster seat is designed to grow comfortably with your child.
Why parents will love it: The easy-to-adjust 3D growth™ system grows with your child, offering nine height positions, an adjustable headrest and an adjustable shoulder system that spreads out. The seat sports three seat depths for growing legs and converts from a high-back car seat to a backless booster.
Why kids will love it: Ventilation panels help regulate temperature, and built-in armrests provide comfortable support. A removable cupholder is within easy reach for snacks or drinks and is dishwasher-safe for easy cleaning.
Child weight/height: Ages 4 and up; 40–110 lb. high-back booster; 50–120 lb. backless booster; 43"–57" high-back booster; 43"–60" belt positioning booster.
Car seat weight/dimensions: 15.6 lb.; 15" x 21.5" x 26".
Safety features: Energy-absorbing foam and SIP pods take side-impact security to the next level.
Harness: A belt positioner with a colored path ensures correct strap routing, decreasing risk of user error.
Car installation: Lower anchor connectors easily secure car seat to vehicle seat.
Stroller compatibility: N/A.
- This car seat is eligible for return in its original, unopened box only
- Microknit fabric is easy to remove and machine-washable; easy-to-clean seat pad
- Steel/plastic/polyester
- Imported
- Item #5998382
Helpful info:
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Shipping & returns
Free shipping. Free returns. All the time. Purchases made online can also be returned or exchanged at any Nordstrom store, free of charge. Read more about our shipping & returns policies.
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Nuna
Inspired by the clean lines and ingenuity of Dutch design, nuna offers baby gear that’s simple, practical and stylish. Each and every product is designed to include thoughtful solutions to make family life that much easier. From high chairs and strollers to travel cribs and car seats, nuna provides premium baby gear you and yours can trust for years to come, designed around your life.
Most helpful positive review
Apr 24, 2023
Nuna family for life!
We have had the Nuna Pipa, Nuna Rava, and now the Nuna Aace for our child. We LOVE the exceptional Nuna quality and safety. We have even been able to pass them down to our 10 month old as well. When the baby was ready to transition to the Rava, we bought the Aace for our oldest. The transition was a breeze. She is SO comfortable in the new booster. It is the perfect size for our car as well. And the cup holder holds her water bottle perfect. I read some reviews before I bought it, and am baffled by all of the bad reviews. There is literally nothing wrong with this car seat. Install is easy, cleaning is easy. You just need to read the manual. 10/10 recommend this booster seat and especially the Nuna brand!
Angela H
Verified purchase
18found this helpful
Most helpful critical review
May 26, 2021
NOOOOO
I should of never bought this I’ve had it for a year and the bottom always unbuttons and never stays buttoned. SO ANNOYING
XimeG
28found this helpful
5 stars
80%
4 stars
9%
3 stars
5%
2 stars
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4%
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Sort by Most Helpful
Color
lettherainfalldown
Feb 4, 2021
not impressed
I was so excited to splurge on this booster seat. My daughter has two Britax ones and we needed another one for a 3rd car. I will agree that it seems very comfortable & the fabric seems like it would wash nicely & is high quality. The actual car seat, however is so flimsy! Most of the "frame" is made of cheap, flexible plastic. I'm not able to see any part of the frame that is metal or steel (as compared with the britax and peg perego which do). Extremely disappointing, given the price point of this seat. I'd rather my child not be as comfortable, but safer in an accident with a sturdier seat.
57found this helpful
KendraKLM
Verified purchase
Feb 14, 2021
Disappointed
I chose this because of the advertised versatility with seat adjustments and the ease of placing the seatbelt so I was super excited to have my son start using it! We also have a nuna pippa for my daughter with the same fabric. Unfortunately the back part of the booster is too straight and the car seat strap is a little challenging for him to thread it through each time to make sure it goes over his chest correctly. I thought the back would lean backward a little to be in more of a reclining position but the only way we can get it is at about a 90 degree angle. We are likely going to take the back part off and only use the base so that means it was a waste of money to buy this just to use the seat part.
29found this helpful
XimeG
May 26, 2021
NOOOOO
I should of never bought this I’ve had it for a year and the bottom always unbuttons and never stays buttoned. SO ANNOYING
28found this helpful
Fashionista1002
Verified purchase
Feb 28, 2022
hurt back
We have had all Nuna products and been happy other than how hard it is to clean and get back on. This one is no different, with difficulty putting the cover back over it. As another reviewer said, it always gets unbuttoned as well. My son hates his and says his back hurts. He is desperate for a different one.M. Very disappointed in this and the fact that they haven't figured out a better way to attach their covers after all these years. It's as though the testers don't have kids that eat or get sick.
23found this helpful
Angela H
Verified purchase
Fit:
Small
True to size
Large
Width:
Narrow
True to width
Wide
Color: Caviar
Apr 24, 2023
Nuna family for life!
We have had the Nuna Pipa, Nuna Rava, and now the Nuna Aace for our child. We LOVE the exceptional Nuna quality and safety. We have even been able to pass them down to our 10 month old as well. When the baby was ready to transition to the Rava, we bought the Aace for our oldest. The transition was a breeze. She is SO comfortable in the new booster. It is the perfect size for our car as well. And the cup holder holds her water bottle perfect. I read some reviews before I bought it, and am baffled by all of the bad reviews. There is literally nothing wrong with this car seat. Install is easy, cleaning is easy. You just need to read the manual. 10/10 recommend this booster seat and especially the Nuna brand!
18found this helpful
NunaFamily
Verified purchase
Oct 27, 2023
better quality elsewhere
I own everything Nuna on this account. Brought these booster seats because they’re slimmer than the Nuna Rava and Nuna Executive car seats for a 6 and 3 year old. It does not have a harness buckle so kids were able to escape out of the seatbelt. My 6 year old didn’t liked it. Thin padding in the buttocks and cup holders were a joke. They’re like “hangers” so drinks and milk spilled everywhere. These were returned after a few days and Nordstrom gave me an unnecessary hassle return experience. I’m not sure if my race as person of color was a reason for the interrogation. Maybe they should put a disclaimer on their website or train their employees better.
15found this helpful
