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Britax B-Safe Gen2 Flexfit Plus Review

October 18, 2022 By Kristian

Britax B-Safe Gen2 Flexfit Plus Infant Seat – Introduction


The Britax B-Safe Gen2 Flexfit Plus Infant Car Seat was introduced to the US Market in 2021 and effectively replaces, and improves upon, the older B-Safe 35 Elite and Ultra series of seats.

The B-Safe Gen2 Flexfit Plus is not an entirely new concept of car seat that has been built by Britax from scratch. Instead, they have taken all of the great features from the older Britax B-Safe 35 Elite seat and added some nice improvements.

There are in fact 3 different models in the new Britax B-Safe Gen2 range of infant car seats and the Flexfit Plus is the top-of-the-range product. It naturally comes with the most safety features, but also has a higher price tag than the standard Gen2 and Flexfit seats.

If you would rather read my side-by-side comparison reviews of the B-Safe Gen2 range of car seats, you can find them here:

B-Safe Gen2 Flexfit Plus v Gen2 Flexfit

B-Safe Gen2 Flexfit Plus v Gen2

B-Safe Gen2 Felxfit v Gen2

In this review I am going to tell you about the main features that can be found on the Flexfit Plus infant car seat.

I hope that once you have read this review you will be in a much better position to decide whether or not the Britax B-Safe Gen2 Flexfit Plus seat is the best option for you and your child.

Britax B-Safe Gen2 Flexfit Plus – The Main Features


#1 Child Weight Limits

The B-Safe Gen 2 Flexfit Plus seat comes with a child weight limit of between 4lbs and 35 lbs.

#2 Child Height Limits

The maximum child height limit for the Flexfit Plus seat is 32 inches.

This is one of the best infant seats available on the market when it comes to maximum child height limits. Children very often outgrow their infant seats by height before they outgrow them by weight and so this is a very important number to consider when choosing a seat.

NB: Looking at the maximum height limit is usually more important than looking at the maximum weight limit.

#3 European Belt Path

The Britax B-Safe Gen 2 Flexfit Plus seat also comes with a European style Belt Guide.

This means that you have the option of being able to safely and securely fit one of these B-Safe Gen 2 Flexfit Plus seats in your vehicle without using the seat base and/or LATCH connectors. Whilst most modern cars are fitted with LATCH connectors and it is much more convenient to simply click the seat in and out of the seat base on every journey, there are situations in which this additional belt path option is very useful.

If you need to use the seat with multiple vehicles and cannot afford to buy multiple seat bases, or if you have grandparents or other occasional carers that need to transport your baby in their vehicles, the option to install the seat using an easy European style belt method is very convenient.

#4 SafeCenter LATCH & Safecell Crumple Zone

The Flexfit Plus seat also features Britax’s unique and patented SafeCenter LATCH seat installation system.

The seat and base are installed within your vehicle in 3 easy steps. You simply connect the lower anchors to the vehicle, pull straps to tighten, and then click the seat into the newly installed steel-reinforced base.

The Flexfit Plus seat and supplied base is also manufactured with Britax’s Safecell crumple zone for added protection in a collision and better peace of mind. In short, the impact-absorbing Safecell base comprises a red “honeycomb” structure that help to absorb crash forces and prevent more serious injury in a collision.

#5 Easy-read Level Indicators

The seat comes with easy-read level indicators to confirm when the seat has been installed at a safe and correct angle within the car, which provides much needed peace of mind to parents of young babies.

The level indicators are called “easy-read” because they can be viewed from all angles, which makes them pretty much fool-proof.

The fear of not installing an infant seat safely and securely into its base can be a big cause of anxiety for carers and having this clear visual confirmation is a great help.

#6 Side Impact Protection

As you might expect from the top-of-the-range model, the Gen2 Flexfit Plus seat comes with Britax’s premium Side Impact Protection system.

This comprises 2 separate layers of side impact protection, which are focussed on adding more padding to the head, neck and torso areas of the seat, which are naturally the most vulnerable parts during a collision situation.

You can find images of the side impact protection features here.

#7 Seating Adjustments

The Britax B-Safe Gen 2 Flexfit Plus seat provides a large selection of harness slot height positions – many more than can be found on budget infant car seats, which makes it much easier to find a perfectly safe and comfortable fit for your baby’s unique shape.

The Britax B-Safe Gen 2 Flexfit Plus Harness options are:

  • Harness Slot Heights at 5/6.2/7.4/8.6/9.8/11 inches
  • Crotch Buckle Strap Depths of 3.5 & 5.5 inches

Other important measurements on these seats include a shoulder width of 10 inches, a seat back compartment height of 20 inches, and a seat area depth/width of 12.5 inches and 8.5 inches respectively.

#8 Seat Weight

The B-Safe Gen 2 Flexfit Plus seat weighs approximately 11.6 lbs, which is pretty average for an infant car seat. They are not particularly heavy seats when compared with other premium models on the US market. At the end of the day, additional safety features often add a little extra weight to a seat, but these seat weights are perfectly normal and manageable.

The Flexfit Plus seat can be used as part of a comprehensive travel system to reduce the need to carry it around.

#9 Harness Adjustments

You won’t be surprised to learn that the Gen2 Flexfit Plus seat with a 5-point harness that can be adjusted very quickly and simply, and without needing to re-thread it every time. This has now become a standard feature on high end infant car seats and, once you’ve used a seat with this feature, it’s hard to go back.

Personally, I would always pay extra for the convenience of being able to make these seat adjustments without having to re-thread the harness each and every time, which can be a real pain for busy parents and other carers.

Imagine having to rethread the harness each and every time on an infant car seat that comes with so many shoulder harness adjustment options!


#10 Anti-Rebound Bar

The Britax B-Safe Flexfit Plus seat comes with an upgraded seat base over the one supplied with the standard Flexfit seat or the basic Gen2 seat.

This upgrade is the inclusion of an Anti-rebound bar, which you can clearly see on the image below.

The anti-rebound bar is constructed of padded steel and is designed to reduce the movement of the seat in the event of a crash.

#11 Seat base Weight/Dimensions

The rather obvious consequence of the addition of an Anti-rebound bar (ARB) on the car seat base that comes with the Flexfit Plus model is that the seat base itself is slightly heavier and larger than the standard Flexfit model.

The Flexfit Plus seat base weighs 11.5 lbs, whereas the standard Flexfit and standard Gen2 seat bases weigh just 9 lbs.

The Flexfit Plus base also extends forwards by an extra 2.6 inches due to the presence of the ARB.

Given that you would ordinarily keep the base installed within your vehicle, this extra weight is not generally going to be a concern.

Other Features include:

  • Safewash cover naturally flame-retardant
  • Stroller Compatible
  • UPF 50+ Extra Large Canopy
  • 1-Hand Harness Buckle Release
  • Quick Push LATCH Connectors
  • Certified for Aircraft Travel
  • 6 year seat expiration

A Helpful Video Review of the Gen2 Flexfit Plus …


Here is the “SnuggleBugs” Video Review of the Britax B-Safe Gen 2 Flexfit Plus seat:

Where to Buy the Britax B-Safe Gen2 Flexfit Plus Seat


Check Best Price of the Britax B-Safe Gen2 Flexfit Plus.

Read User Reviews of the B-Safe Gen2 Flexfit.

Britax B-Safe Gen2 Seats in Canada

Check Best Prices of Britax B-Safe Gen2 Seats in Canada

Safety Information


After purchasing any child car seat, you should always read the User Manual thoroughly before using it. It is also advisable to visit your local Fire Department or NHTSA Child Car Seat Inspection Centre to ensure that the seat is definitely suitable for your child’s specific requirements and that you have installed it correctly. These services are usually provided free of charge.

You can find your nearest NHTSA Centre here.

Get in Touch


If you have any comments to share or questions to ask about my Britax B-Safe Gen2 Flexfit Plus Infant Car Seat Review, please leave a comment in the box below or send me an email.

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