Peg Perego Viaggio Flex 120 Booster Car Seat

Our score 9.51 / 10

Research by Peter Crona Last updated Method How we research

Before You Buy

Confirm the model specs, bundle contents, and limits before buying, since details can change after our review.

Affiliate: We may earn a commission if you buy through our links.

From 39.7 lb (18 kg), up to 63 in (~4-12 years).

Peg Perego Viaggio Flex 120 Booster Car Seat

Pros

  • Rigid LATCH keeps the empty booster secured when your child is out of it.
  • The 120 lb (54.4 kg) and 63 in maximum limits provide more growing room than boosters capped at 100 lb (45.4 kg) and 57 in.

Cons

  • Starts at 40 lb (18.1 kg), so it is not an option for children still needing a harness.
  • Premium price and 14.8 lb (6.7 kg) weight are real costs for a stage some families exit quickly.
Max Weight
120 lb (54.4 kg)
Height Range
39-63 in (99.1-160 cm)
Seat Use
Booster
Install Method
Vehicle lap-and-shoulder belt restrains child; optional LATCH stabilizes booster
Product page
Open product page
Price/Buy
Check price at Amazon

The Viaggio Flex 120 is a high-back booster for children from 40-120 lb (18.1-54.4 kg) and 39 to 63 in; it does not replace a rear-facing or harnessed seat for a child who still needs one. Its headrest and shoulder-belt guides adjust in four directions, helping match the seat to a growing child, and the booster folds for storage. Rigid LATCH connectors attach the booster to the vehicle, but the child must still be secured with the vehicle belt as directed in the manual. The upper limit of 120 lb (54.4 kg) or 63 in offers more growth room than many boosters capped at 100 lb (45.4 kg) or 57 in. Check belt fit across the child’s shoulder and lap and confirm the booster fits the vehicle seating position.