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Chicco MyFit Air ClearTex Harness + Booster Car Seat

A harness-to-booster seat with 2 modes: forward-facing harness 26.5 to 65 lb, up to 54 in; high-back booster 40 to 100 lb, 44 to 57 in.

At a glance

Fits children from 26.5 to 100 lb
Up to 57 in tall
2 modes: forward-facing harness, high-back booster
Seat weighs 25 lb
17.5 in wide
8-year usable life
Certified for aircraft use

Shopping links paused for a recall check

NHTSA lists a campaign naming this model family (25C005000). I pause shopping links until I have read the campaign and checked which build dates it covers.

Chicco product page Manual

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

Who the MyFit Air ClearTex Harness + Booster Car Seat fits

This seat covers 2 stages, and a child has to meet every limit of the stage they are in. Chicco gives it a 8-year life from the date of manufacture, so check the date label before using a hand-me-down.

Forward-facing harness26.5 to 65 lb · Up to 54 in · from 2 years: The child faces forward in the seat’s own harness. Use the top tether every time, and stay in the harness until the child outgrows it.
High-back booster40 to 100 lb · 44 to 57 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 MyFit Air ClearTex Harness + Booster Car Seat weight, height and age limits?

Chicco MyFit Air ClearTex Harness + Booster Car Seat limits by mode
Mode	Child weight	Child height	Minimum age	Conditions
Forward-facing harness	26.5 to 65 lb	Up to 54 in	2 years	Manual: harness mode for children at least 2 years old.
High-back booster	40 to 100 lb	44 to 57 in	4 years	Product page and manual: at least 4 years old and able to sit still in the seat belt.

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

MyFit Air ClearTex Harness + Booster Car Seat specifications

Seat weight: 25 lb
Width: 17.5 in
Depth: 21 in
Height: 26 in
Usable life: 8 years
Aircraft use: Certified for aircraft (see manual for which modes)
Recline positions: 4
Harness positions: 9
Crotch positions: 2
Max harness slot height: 20 in
Interior shoulder width: 12 in
Interior hip width: 11.5 in
Interior seat depth: 15.5 in
Max seated height: 29.5 in
Belt positioning clip height: 21 in
Latch type: Standard LATCH
Seat belt installation: LockSure
Assembled dimensions lx wx h: 21" x 17.5" x 26"
Assembled product weight: 25 lbs
Specs source: https://www.chiccousa.com/shop-our-products/car-seats/myfit-air-cleartex-harness-booster-car-seat/87213.html
Faa note: Product page: FAA certified for aircraft use in harness mode only; manual states booster mode is not certified for aircraft.
Faa source: https://www.chiccousa.com/shop-our-products/car-seats/myfit-air-cleartex-harness-booster-car-seat/87213.html
Expiration source: https://www.chiccousa.com/on/demandware.static/-/Sites-chicco_catalog/default/dw7313a0c3/images/products/Manuals/car-seats/Chicco-MyFit-Air-ClearTex-Car-Seat-Manual.pdf

How the MyFit Air ClearTex Harness + Booster Car Seat installs

Belt lock-off: LockSure belt lock-off. A lock-off clamps the vehicle belt so you do not have to switch the belt's retractor into its locked mode.
Lower anchors: Standard LATCH. Check your vehicle manual for which seating positions have anchors, and switch to the seat belt once the child passes the anchor weight limit in the manual.
Recline: 4 recline positions. The recline angle is what keeps a young baby’s airway open, so set it before tightening the install.
Harness: 9-position headrest/harness height adjust. Check the harness height at each growth spurt: at or below the shoulders rear-facing, at or above them forward-facing.

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?

At 17.5 in at its widest, this seat is one of the narrower ones in its class and is a candidate for three across in many mid-size cars. It weighs 25 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.
Certified for aircraft use, so it can travel as a seat rather than checked baggage.

What features does the MyFit Air ClearTex Harness + Booster Car Seat have?

4 recline positions
9-position headrest/harness height adjust
LockSure belt lock-off
Standard LATCH

Colors listed in the US

Nova, Stratus.

Is the MyFit Air ClearTex Harness + Booster Car Seat recalled?

NHTSA currently lists one campaign naming this Chicco family: 25C005000. A campaign names a family, not always every build, so check your seat’s model number and date of manufacture against the campaign itself.

I have not reviewed these campaigns for this model yet, so shopping links stay paused here.

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; Chicco lists 2 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 Chicco so you hear about the next one.

Sources

Other Chicco booster seats

Model	Top child weight	Seat weight	Width	Usable life
MyFit Air ClearTex Harness + Booster Car Seat (this seat)	100 lb	25 lb	17.5 in	8 years
MyFit Harness + Booster Car Seat	100 lb	25 lb	17.5 in	8 years
MyFit ClearTex Harness + Booster Car Seat	100 lb	25 lb	17.5 in	8 years
KidFit ClearTex Plus 2-in-1 Belt-Positioning Booster Car Seat	110 lb	10 lb	17 in	—
KidFit Adapt Plus 2-in-1 Belt-Positioning Booster Car Seat	110 lb	10 lb	17 in	—
KidFit Zip Plus 2-in-1 Belt-Positioning Booster Car Seat	110 lb	10 lb	17 in	—
KidFit Zip Air Plus Booster Car Seat	110 lb	11 lb	17 in	—
GoFit Backless Booster Car Seat	110 lb	5 lb	17 in	—
GoFit Plus Backless Booster Car Seat	110 lb	6 lb	17 in	—