Keep big kids safe and comfortable on the go with the Nuna AACE in backless booster mode. Lightweight yet luxurious, this seat positions the vehicle’s seat belt correctly across your child’s lap and shoulder, giving them the protection they need without the bulk of a high-back booster.

Designed with Nuna’s signature FR-free, GREENGUARD Gold certified fabrics, it delivers comfort and peace of mind in every ride. The three-position depth-adjustable seat base helps ensure a proper fit for growing legs, while integrated cupholders give kids a spot for drinks or snacks during longer drives.

The AACE installs quickly using the vehicle’s seat belt, with optional lower anchors to keep the booster securely in place when unoccupied—ideal for grandparents, rental cars, and rideshares.

Designed for: children 50–120 lb, 43–60″ tall (generally ages 5–10+).

Approx. weight: ~7 lb in backless mode.

Your rental includes: Nuna AACE backless booster seat. Every seat is carefully cleaned, sanitized, and safety-checked before delivery—so your big kid can ride safely and comfortably, while your family travels light.