Nuna Aace Booster Seat - Granite

Featuring a 3d growth system

• grow up: one-hand, 9 position height adjustable headrest makes moving on up a breeze
• grow out: shoulder system works simultaneously with the headrest, expanding out while growing up
• grow on: seat sports 3 depths giving growing legs plenty of support and space 

2-in-1 design converts from a high back to a no back booster:

• High back booster: 40–110 lbs | 38–60 in suggested 4 years + 
• No back booster: 50–120 lbs | 38–60 in suggested 5 years +