Nuna – Aace Booster Car Seat, Granite

From toddler to independent pre-teen, the journey is both long and fleeting. The AACE grows alongside your child, providing seamless adaptability at every stage. Designed with safety in mind, every component—from fabric to foam—is flame-resistant without the use of added fire-retardant chemicals.

With customizable side-impact protection pods and belt-path indicators, safety is built into every ride. The transition to using a seatbelt feels natural, while parents enjoy peace of mind knowing their child is both secure and comfortable. Featuring an adjustable headrest, an expandable seat, and eight recline positions, the AACE ensures a tailored fit for every stage of growth.

3D Growth™ System

• Grow Up – One-hand, 9-position adjustable headrest adapts as your child grows

• Grow Out – The shoulder system expands outward while the headrest moves up

• Grow On – Three-seat depth options provide ample leg support

2-in-1 Design

• Converts from a high-back booster to a no-back booster

Advanced Safety Features

• Energy-absorbing foam and SIP pods enhance side-impact protection

• Belt positioner ensures proper shoulder belt placement

• Color-coded belt path indicators minimize installation errors

• Lower anchor connectors secure the seat for stability

Comfort & Convenience

• Flame-resistant materials with no added fire-retardant chemicals

• Eight recline positions for a customized ride (available in high-back mode with lower anchor connectors)

• Ventilation panels and breathable, washable knit fabric for a cool and comfortable experience

• Built-in armrests for added comfort

Sleek & Practical

• Micro-knit fabric is easy to remove and machine washable

• Removable, dishwasher-safe cup holder

Included Accessories

• AACE Starter Kit: Cup holder, belt-positioning clip, and LATCH guides

Specifications

• High-Back Booster: 40–110 lbs | 43–57 in (recommended for ages 4+)

• No-Back Booster: 50–120 lbs | 43–60 in (recommended for ages 5+)

• Seat Weight: 22.3 lbs

• Dimensions: 26” H x 15” L x 21.5” W