Product images are not available right now.

Peg Perego Viaggio Flex 120

A high-back booster seat with one mode: high-back booster 40 to 120 lb, 39 to 63 in.

At a glance

Fits children from 40 to 120 lb
Up to 63 in tall
High-back booster only
Seat weighs 14 lb
12-year usable life

Current Amazon listing data is unavailable

Prices and purchase links will return when a fresh, eligible listing is available. The review and manufacturer sources remain available below.

Peg Perego product page Manual

Specifications checked against Peg Perego’s US site and manual on September 17, 2026. Not hands-on tested. How I research

Who the Viaggio Flex 120 fits

This seat covers one stage. Peg Perego gives it a 12-year life from the date of manufacture, so check the date label before using a hand-me-down.

High-back booster40 to 120 lb · 39 to 63 in · from 4 years: The seat’s own back and belt guide route the vehicle belt across the shoulder, and the sides give the child something to lean on when they sleep.

A school-age child with a backpack beside an empty high-back booster

What are the Viaggio Flex 120 weight, height and age limits?

Peg Perego Viaggio Flex 120 limits by mode
Mode	Child weight	Child height	Minimum age	Conditions
High-back booster	40 to 120 lb	39 to 63 in	4 years	Manual: at least 4 years old, at least 40 lb, at least 39 in tall

A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.

Viaggio Flex 120 specifications

Seat weight: 14 lb
Width: Not published
Usable life: 12 years
Aircraft use: Not certified for aircraft
Dimensions text: Unfolded 22" x 17.25" x 26.75"; folded 23.5" x 17.25" x 9.75"

How the Viaggio Flex 120 installs

Rigid LATCH: Rigid LATCH. Rigid connectors click straight onto the vehicle's lower anchor bars, which removes the strap slack that causes loose installs.

Every install is a fit between one seat and one vehicle. Read both manuals, and use a free inspection station if anything is unclear.

An empty car seat installed on a back seat, seen through an open car door

Will it fit your car?

Peg Perego does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying. It weighs 14 lb, which matters if you will move it between cars or carry it through an airport.

Check your vehicle manual for lower anchor positions and any head-restraint rules.
Rear-facing seats need front-seat room: try the install behind the driver before you commit.
Not certified for aircraft use: plan on gate-checking it or using a different seat to fly.

What features does the Viaggio Flex 120 have?

Rigid LATCH
Folds

Colors listed in the US

Monza, Crystal Black, Mon Amour, Astral, John Deere, Licorice, Metal.

Is the Viaggio Flex 120 recalled?

No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.

NHTSA recall search · Recent car seat recalls

Before you buy

Weigh and measure your child. The limits above are the manufacturer’s, and a child has to meet all of them for the mode they will use.
Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; Peg Perego lists 7 colors of this seat.
Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
Check recalls by model number and date of manufacture, and register the seat with Peg Perego so you hear about the next one.