Lionelo Bastiaan i-Size

Our score 9.51 / 10

Research by Peter Crona Last updated Method How we research

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Rear-facing 40-105 cm; belt-booster mode 100-150 cm.

Lionelo Bastiaan i-Size

Pros

  • Rear-facing use runs from 40-105 cm with the five-point harness, giving families the option to keep the earlier stages rear-facing.
  • The 90° loading position, integrated ISOFIX base and four forward-facing recline settings reduce everyday handling friction in a compatible car.

Cons

  • The 40-105 cm stage requires both ISOFIX and Top Tether; it is not a belt-installed infant/toddler seat.
  • From 100 cm the child uses the vehicle belt, and the manual warns that vehicle fit may be limited above 135 cm, so trial-fit the final stage.
Height Range
40-150 cm
Seat Use
Infant, Toddler, Booster
Install Method
ISOFIX or vehicle seat belt
Rotation
Yes
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Price/Buy
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Lionelo Bastiaan i-Size is a practical one-seat plan when the car has ISOFIX and a reachable Top Tether anchor. Under its R129/03 manual, children use the five-point harness rear-facing from 40-105 cm, with a 21 kg limit. The seat can turn sideways for loading, but must click back into its travel position. Never rear-face it before an active frontal airbag.

Forward-facing harness use is permitted from 76-105 cm and only after 15 months; staying rear-facing to 105 cm avoids an early switch. At 100-150 cm, remove the harness and route the vehicle lap-and-shoulder belt through the guides; ISOFIX becomes optional. This stage overlap is a mode choice, not simultaneous restraint systems. Check the Top Tether route, rotation clearance, recline and headrest fit in your car. The manual specifically warns that fit may be limited above 135 cm.