Graco Affix I-size R129 Isofix High Back Booster in Midnight


Get a major boost of convenience, confidence and comfort with Affix i-Size R129. This highback booster has it all including built-in ISOFIX connectors that keep the car seat safely fixed in place — even when your growing child isn’t along for the ride. Plush premium padding and breathable fabrics are the cherry on top of this highback booster that truly does it all.

If you are looking for a highback booster with exceptional safety features, Affix i-Size R129 is here to help. This car seat comes with one-click ISOFIX connectors – a first for a Graco highback booster. While you still use the vehicle’s seat belt as the main installation method, the ISOFIX connectors provide extra protection to all other riders by ensuring the car seat stays in place and doesn’t become a projectile when not in use.


Affix i-Size R129 meets the EU’s latest R129 safety standards and is i-Size certified, which means that it will correctly fit into any i-Size approved vehicle. For even more peace of mind, Safety Surround™ Side Impact Protection wraps around your child, giving them enhanced head and body protection. To ensure proper head and neck support at any stage, adjust the 10-position headrest with just one hand.


Suitable for kids between 100 and 150cm (approx. 3.5 to 12 years), this highback booster is packed with features that are focused on their comfort. Your growing child will stay cool no matter the season thanks to the car seat’s side ventilation design that uses breathable fabrics to create a nice and steady airflow. The premium padded seat with padded armrest covers means they will stay comfy for all your journeys together, and the 2 retractable cupholders come in handy when you’re on the go.


Weighing only 4.2kg, you can easily move Affix i-Size R129 between vehicles. In case of any spills or messes, simply remove the fabric covers and throw them in your washing machine for a quick cleaning.

– i-Size and R129 certified
– Colour-coded ISOFIX connectors for extra safety
– Safety Surround™ Side Impact Protection wraps around your child for enhanced protection

Ease of Use
– Lightweight at only 4.2kg, making it easy to move between vehicles for hassle-free journeys
– Machine-washable covers for easier cleanups

Child Comfort
– Side ventilation with breathable fabrics keeps your child cool
– 10-position headrest provides proper support for your child’s head and neck
– Premium padded seat delivers comfort on each and every ride
– Padded armrest covers for extra comfort on every journey
– 2 retractable cupholders keep drinks, gadgets and goodies right within reach
– Forward-facing highback booster mode from 100 to 150cm (approx. 3.5 to 12 years)

1 in stock