Graco Junior Maxi™ i-Size Highback Booster Car Seat 100-150cm Coal

The Graco Junior Maxi i-Size R129 is a highback booster car seat designed for children from 100–150 cm, approximately 3.5 to 12 years. It is used exclusively forward-facing and complies with the UN R129/03 safety standard.

Enhanced side-impact protection, a 10-position headrest and open-loop belt guides provide a secure fit as the child grows. Weighing only 3.4 kg, it can be moved easily between vehicles.

Safety and Installation

• i-Size certified according to the UN R129/03 standard
• Suitable for children from 100–150 cm
• Approximate age range: 3.5–12 years
• Forward-facing installation only
• Installed using the vehicle’s 3-point seat belt
• Not equipped with ISOFIX connectors
• Enhanced side-impact protection for the head and neck
• Open-loop belt guides support correct seat belt positioning
• The seat should remain buckled in when travelling without a child

Comfort and Convenience

• 10-position adjustable headrest
• Premium padded seat for comfortable journeys
• Two integrated retractable cupholders
• Lightweight construction weighing 3.4 kg
• Removable and machine-washable cover
• The backrest cannot be removed for backless booster use

Dimensions and Contents

• Length: 39 cm
• Width: 45.6 cm
• Height: 60.5–81.5 cm
• Weight: 3.4 kg
• Includes the highback booster car seat and instruction manual

Cleaning and Care

• Machine-wash the cover on a delicate cycle at up to 30°C using cold water
• Drip dry naturally in the shade
• Do not bleach, iron or dry-clean
• Clean plastic and metal parts with mild soap and cool water

Product Details

• Brand: Graco
• Model: Junior Maxi i-Size R129
• Type: Highback booster car seat
• Child height: 100–150 cm
• Orientation: Forward-facing
• Installation: Vehicle 3-point seat belt
• ISOFIX: No
• Colour: Coal
• Product code: 8CT899F01EU
• EAN: 5060624774478

Frequently Asked Questions

Does the Graco Junior Maxi have ISOFIX?
No. The seat is installed and the child is secured using the vehicle’s 3-point seat belt.

Can it be used without the backrest?
No, the backrest is not removable and the seat cannot be converted into a backless booster.

Is the cover machine-washable?
Yes, the cover can be removed and machine-washed on a delicate cycle at up to 30°C. Drip drying in the shade is recommended.