Graco Affix i-Size R129

Our score 9.82 / 10

Research by Peter Crona Last updated Method How we research

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From 100 cm, up to 150 cm (~3.5 to 12 years).

Graco Affix i-Size R129

Pros

  • The 4.2 kg high-back shell is comparatively manageable for moving between vehicles.
  • ISOFIX keeps the empty booster positioned while the vehicle belt remains the child's restraint.

Cons

  • It has no internal harness, so it is only for a child mature enough to maintain belt position.
  • Cupholders and side width should be checked if fitting several seats across one row.
Height Range
100-150 cm
Seat Use
Booster
Install Method
ISOFIX or vehicle seat belt
Product page
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Price/Buy
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Graco Affix i-Size R129 suits a child from 100-150 cm who can sit consistently with the vehicle belt correctly positioned. The high back guides the shoulder belt, while optional ISOFIX connectors hold the booster steady when it is empty; the belt, not ISOFIX, restrains the child. At 4.2 kg, it is manageable for families who move a seat between cars, although the cupholders and shell width still need checking for a three-across layout. This is not a harnessed seat, so do not choose it only because the child has reached 100 cm. Before buying, confirm booster readiness, headrest clearance and flat lap-and-shoulder belt routing in every intended vehicle.