Car Seat Guide: Britax Frontier 90 Booster

Car Seat Guide Britax Frontier

When your child reaches the weight and height limits of their convertible car seat, you still want to keep them as safe as possible, in a 5-point harness.   The Britax Frontier 90 is a comfortable solution to keep your older child harnessed up to 90 lbs and 58 inches tall.  This seat also functions as a booster for children up to 120 pounds, so this is definitely a seat that will grow with your child until they absolutely do not need any type of car seat or booster. Read on to find out why the Britax Frontier 90 is one of our very favorite seats for keeping kiddos as safe as possible for as long as possible.


The most exciting feature of the Frontier 90 is Britax’s ClickTight technology that you can use to easily install the seat in your car using a seat belt, and it only takes a moment. Although LATCH connectors are a very convenient means of installation, they do have weight limits, and that is where an easy means of seat belt installation comes in handy. ClickTight technology allows you to open the seat of the Frontier 90, reach the seat belt across and connect it, and then close the seat; your Frontier 90 will then be securely installed!

Another safety feature is the True Side Impact Protection, which provides deep walls on either side of the shell of the seat and a head restraint with energy absorbing EPP foam to distribute crash forces, shield from vehicle intrusion, and contain the head, neck and body in case of an accident.

Other safety features include SafeCell Technology in the base of the seat, which compresses and significantly lowers the center of gravity, reducing the forward movement of the car seat, integrated steel bars, which strengthen the connection of the seat to the vehicle, and an Energy Absorbing Versa Tether which anchors the top of the car seat to the vehicle, minimizing forward movement in a collision.


Not only is this seat an incredibly safe choice, but it is also a very comfortable option for your child. The Frontier 90 reclines easily using a lever on the front of the seat, two buckle positions ensure a secure fit, no matter the size of your child, and armrests on either side provide a comfortable resting place for your child’s arms, with two cup holders close by.

Layers of Comfort Foam and super soft fabrics also ensure that your child will be riding in comfort and style.


The safety and comfort of the Frontier 90 are hard to beat, but if you’re still not convinced, check out these features that make care and installation of this seat as easy as can be.

The Frontier 90 offers a Quick-Adjust No-Rethread Harness, so you can adjust the height of the head rest and shoulder straps without disassembling or even uninstalling the seat. The Color-Coded Vehicle Belt Guides provide clear explanations to simplify installation in both booster and harness mode, and the seat can easily be transitioned from harness mode to booster mode without removing the straps.

The Easy Remove cover makes cleanups a breeze, so you can keep the seat looking brand new without having to uninstall it from your vehicle, and the EZ-Buckle System holds the harness buckle in a forward position and keeps the child from sitting on the buckle as they climb into the seat.

Our Favorite Features

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Photo Credits: Jumping Jax Designs

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