Nuna AACE Combination Booster Car Seat
Nuna AACE Combination Booster Car Seat
Qualifies for FREE SHIPPING
Arrives between 06/30/26 and 07/05/26
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The Nuna AACE Combination Booster Car Seat grows right along with your child from preschool to pre-teen. Its 2-in-1 design allows it to convert from a high-back booster to a no-back booster, while its 3D growth system allows it to expand up and out as your child grows.
The customizable side impact protection pods and belt-path indicators make riding super secure. Your child one will 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?
Why Trust Baby Cubby?
Why Trust Baby Cubby?
Thousands of parents have trusted us for over 11 years. Here's why you can shop confidently with The Baby Cubby.
1. 11+ Years in business & two brick & mortar stores with consistent positive reviews. See our store here
2. We've helped over 100,000 families find products they love and trust
3. Price match guarantee + Free Shipping
4. Curated products and tested gear - we spend hundreds of hours training and learning so you don't have to.
5. Gear Experts - our team has created hundreds of how to's and product videos that have over 21 million views. We know gear and are here to help answer your questions.
6. Over 400k parents trust us on Instagram & social media for parenting, product tips and more.
7. Love your stroller guarantee - If you don't love it, return it within 60 days, even if used.
8. CPST's - more child passenger safety technician's on staff than any other specialty baby retailer in the USA. Be confident your child is safe in their seat.
9. Incredible service - we're parents too, you deserve to be treated like a person, not a dollar sign.
10. We've been featured by multiple news outlets and even by Google over the years, check out some of the press we've received here
11. Family owned & operated small business. When you shop with us you are supporting a small business that cares about its team members.
12. Nothing matters more than family, let us help your family find products you love and trust.
Best Price Guarantee
Best Price Guarantee
The product must be the exact same color/style/size and be in stock on competitor’s website. Unfortunately, we cannot price match auction-based websites and the seller must be an authorized distributor of the brand. Some brands and manufacturers are excluded from our price match policy.

Customer Service at hello@babycubby.com

when items are purchased at full retail price and the
merchandise (of the same style, color, and size) is
discounted within 14 days of the original purchase date.
not eligible for price adjustments.
Price adjustments are not provided during Black Friday or
Cyber Monday sales.
Car Seat Returns
Car Seat Returns
You can return your car seat within 30 days if it is unopened and unused. See our full return policy here.
Easy Returns within 30 days
Easy Returns within 30 days
You can return your car seat within 30 days if it is unopened and unused. See our full return policy here.
Shop Confidently - Talk to our Gear Experts
Shop Confidently - Talk to our Gear Experts
Gear Experts
Have Questions?
What is a CPST?

How does a CPS tech get certified?
Features
Features
- Converts from a high back to a no back booster
- One-hand, 9-position, height-adjustable headrest
- Shoulder system works simultaneously with the headrest, expanding out while growing up
- Seat sports 3 depths, giving growing legs plenty of support and space
- Customizable 8-position recline
- Energy absorbing foam and SIP pods take side impact security to the next level
- From fabric and foam are flame resistant and contain no added fire retardant chemicals
- GREENGUARD Gold Certified: Products that have achieved GREENGUARD Gold Certification are scientifically proven to meet some of the world's most rigorous third-party chemical emissions standards, and certified to not contribute to indoor air pollution or chemical exposure
- Comfy, built-in arm rests
- Lower anchor connectors easily secure car seat to vehicle seat during use or transport
- Colored belt path indicators help decrease risk of user error
- Belt positioner aids in correct shoulder belt routing and minimizes user error
- Ventilation panels within the shell and breathable (and washable!) knit fabric create a comfy climate for even the longest of trips
*This brand is excluded from coupons
Rewards
Rewards
What's Included
What's Included
- Nuna AACE Combination Booster Car Seat
- Cup Holder
- Belt Positioning Clip
- Set of LATCH Guides
Specifications
Specifications
Weight and Height Capacity
High-Back Booster
- 40–110 lbs; 38–60"
No-Back Booster
- 50–120 lbs; 38–60"
- Suggested 5+ years
Product Weight and Dimensions
- Weight: 15.6 lbs
- Dimensions: 26" H x 15" L x 21.5" W
Installation Options
- Rigid LATCH
Materials
- From fabric to foam and beyond, each element is smartly sourced to be both flame resistant and contain no added fire retardant chemicals.
Care Instructions
- Refer to the care label attached to the soft goods for
washing and drying instructions. - Use only mild detergent, water and a soft cloth to
clean the booster seat shell, handle and harness
straps. - Air dry.
- Remove the child restraint from the vehicle seat if not in use for a long period of time. Put the booster seat in a cool, dry place and somewhere your child cannot access it.
Compatibility + Accessories
Compatibility + Accessories
Accessories
Additional Resources
Additional Resources
YouTube Videos
- Nuna AACE Booster Seat (Updated)
- Best Booster Seats feat. Nuna AACE and UPPAbaby ALTA
- Comparing the UPPAbaby ALTA v. Nuna AACE
- Comparing the Nuna AACE v. Britax Highpoint
- Comparing the Britax Grow With You Clicktight Plus v. Nuna AACE
Blog Posts
- TOP 4 Booster Seats to Keep Your Child Safe!
- How Do I Know When My Child is Ready for a Booster Seat?
- Nuna AACE Combination Booster Car Seat Review
- Nuna AACE vs. Britax Clicktight Frontier
- Meet the Nuna RAVA and Nuna AACE Car Seats!
Gear Guides



