What is a harness booster car seat?

How to Choose a Harness Booster Car Seat

A harness booster seat is a type of car seat that combines the features of a 5-point harness system with a booster. Harness booster car seats are designed to transition with your child’s growing body in mind – from toddler to a big kid car seat.

Use the integrated 5-point harness until your child is big enough—at least 4 years old and 40 pounds—to buckle up using the vehicle seat belt. Belt-positioning guides ensure a proper fit in booster mode, every time.

Explore MyFit® 5-Point Harness Booster Car Seat


Harness Booster Car Seat Checklist

Chicco How to Category Icons 2025 Harness Booster Positive

Keep your growing toddler comfortable and content in a big-kid style seat that’s equipped with the reassuring security of a five-point harness.

Chicco How to Category Icons 2025 Harness Booster Positive

Maintain five-point harness protection for as long as possible with a harness booster seat that converts; you choose when to transition to belt-positioning mode.
(Before you transition, make sure your big kid is at least 4 years old and mature enough to buckle in using the seat belt)

Chicco How to Category Icons 2025 Harness Booster Positive

Free up your convertible car seat for a younger sibling without rushing big brother/sister to the vehicle seat belt before you’re ready.

Chicco How to Category Icons 2025 Harness Booster Negative

Keep in mind that Harness + Booster car seats from Chicco do not have a removable backrest to create a backless booster.

Harness Booster Car Seat - Frequently Asked Questions

Infant
Car Seats

NEWBORN to TODDLER

Harness + Booster
Car Seats

TODDLER to BIG KID

Belt-Positioning
Boosters

BIG KID to YOUTH