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Product Information

Britax Frontier 90 Booster Car Seat
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The new Britax Frontier 90 combination harness-2-booster boasts the revolutionary ClickTight installation system combined with Britax's leading head safety technologies. The Frontier 90 keeps your big kid safe and offers parents the peace of mind of a safe, secure, and easy car seat installation each and every time. ClickTight installation system is an innovative technology that allows parents to easily achieve a safe and secure installation using a vehicle seat belt every time.

Features:

  • True Side Impact Protection provides deep side walls and a head restraint with energy-absorbing EPP foam to distribute crash forces, shield from vehicle intrusion, and contain the head, neck and body while keeping them aligned
  • Base with SafeCell Technology compresses and significantly lowers the center of gravity in a crash, reducing the forward movement of the car seat
  • Integrated Steel Bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash
  • Energy Absorbing Versa-Tether anchors the top of the car seat to the vehicle using a two-point attachment, minimizing the amount of forward movement of the car seat.
  • Chest Pads provide resistance to forward movement in the event of a crash
  • Compatible with SecureGuard (accessory sold separately) which works with the vehicle safety belt in booster mode to prevent the child from sliding under the lap-belt portion of the safety belt during impact

Includes:

  • Tangle-Free, Five-Point Harness (with 9 harness height positions - up to 20.5")
  • Secure fit with HUGS (Harness Ultra Guard System)
  • Integrated Cup Holders and Storage
  • Quick-Adjust No-Rethread Harness
  • Color-Coded Vehicle Belt Guides
  • Removable cover

Manufacturer Recommended Weight/Height Limits:

  • Harness mode: From 25 to 90 pounds, from 30 to 58 inches
  • Booster mode: From 40 to 120 pounds, from 45 to 62 inches

Product Dimensions:

  • Weight:25 pounds
  • Harness: Depth/Width/Height:21 x 19 x 36 inches
  • Booster: Depth/Width/Height: 21 x 19 x 28 inches

• Made in the USA and Imported- USA
• 100%Polyester

Product Notes

Popularity: #1 in Booster Car Seats, #4 in Car Seats
View All Britax Frontier 90 View All Britax View All Car Seats

Britax Frontier 90 - Onyx

367 reviews
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  • Onyx
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    Customer Reviews & Product Info

    Review Snapshot

    REVIEW SNAPSHOT®

    by PowerReviews
    BritaxFrontier 90 - Congo
     
    4.6

    (based on 19 reviews)

    95%

    of respondents would recommend this to a friend.

    Pros

    • Safe (17)
    • Easy to adjust (16)
    • Easy to install (16)
    • Comfortable (15)
    • Durable (15)

    Cons

    • Heavy (8)

    Best Uses

    • Toddler (16)
      • Reviewer Profile:
      • Parent of two or more children (13)

    Reviewed by 19 customers

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    Displaying reviews 1-15

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    5.0

    my son loves this car seat

    By amanda

    from iowa

    About Me First Time Parent

    See all my reviews

    Pros

    • Comfortable
    • Easy to Adjust
    • Easy to Clean
    • Easy to install
    • Safe
    • Sturdy
    • Stylish

    Cons

    • Heavy

    Best Uses

    • Big kids
    • Toddlers

    Comments about Frontier 90 - Congo:

    We use the car seat often.
    My son picked this one out. I was wanting a car seat with a larger harness weight. So I was going to get anything with a large harness weight I didn't care what brand. I'm glad I got Britax wish I had this brand sooner. The install is rock solid and doesn't move after you install the car seat in your car.

    Comment on this review

     
    5.0

    amazing seat

    By SFI

    from Washington, DC

    About Me Parent of Two or More Children

    Pros

    • Comfortable
    • Easy to Adjust
    • Easy to install
    • Safe
    • Stylish

    Cons

      Best Uses

      • Infants
      • Toddlers

      Comments about Frontier 90 - Cactus Flower:

      incredibly easy install with the best tightness i've ever acheived.

      seat is very comfortable for my 5 year old and i love that we can keep her in the 5 point harness for a while longer and use this same seat for when she goes to a proper booster style.

      I WISH this seat had been available when I bought my old convertibles - it has such a longer life b/c it goes up so tall (my daughter is so tall that she is out of her old convertible, but still meets the weight requirements for a 5 point restraint).

      Comment on this review

       
      4.0

      Love

      By Kelly

      from Iowa

      About Me Parent of Two or More Children

      Verified Buyer

      Pros

      • Comfortable
      • Easy to Adjust
      • Easy to install
      • Safe
      • Sturdy
      • Stylish

      Cons

      • Heavy

      Best Uses

      • Toddlers

      Comments about Frontier 90 - Cactus Flower:

      Love this car seat! The installation is amazing! It it really easy to install and it is very secure! I've always had issues trying to get other car seats to the 1" of movement or less along the belt path. Thanks to the frontier 90 I no longer have to fight a seat!

      Comment on this review

       
      4.0

      Great Seat

      By Mommy 2 Adia

      from Springfield, OR

      About Me Parent of Two or More Children

      Verified Reviewer

      Pros

      • Comfortable
      • Safe
      • Sturdy

      Cons

      • Heavy

      Best Uses

      • Elementary Aged
      • Preschoolers
      • Toddlers

      Comments about Frontier 90 - Congo:

      This is a great, well made seat. I bought my first Frontier for my oldest daughter 4 years ago (she'll be 7 next month) and she's still using it with a harness. I then bought one last year for one of my twins who'd outgrown her Marathon seat in height. Every thing that I didn't like on my oldest's seat had been fixed! It was easier to install, the cupholders weren't fold out, the harness straps weren't constantly twisting inside the buckle. Yes, it's heavy and expensive, but it will be the last car seat you'll ever need to buy.

      Comment on this review

       
      5.0

      very pleased

      By mom to 3

      from LA, CA

      About Me Medical Professional

      See all my reviews

      Verified Buyer

      Pros

        Cons

          Best Uses

            Comments about Frontier 90 - Cactus Flower:

            very heavy and sturdy feeling. daughter is happy she has more room and cup/snack holders. i like that she has harness and good side impact protection. yes it is one of the more expensive seats, but you get what you pay for. i have trusted my children to britax from the beginning and wouldn't start to skimp now when it is booster time. safety all the way.

            Comment on this review

            (0 of 1 customers found this review helpful)

             
            5.0

            Awesome seat

            By Shari

            from York, pa

            About Me Parent of Two or More Children

            Pros

            • Easy to Adjust
            • Easy to install
            • Safe
            • Sturdy

            Cons

              Best Uses

              • Toddlers

              Comments about Frontier 90 - Onyx:

              I just installed this seat in place of a Graco myride 65 that I felt my son was too large for and this seat is amazing! The click tight installation is awesome and easy and the seat doesn't budge. Will never buy another Graco after seeing the comparison.

              Comment on this review

              (2 of 2 customers found this review helpful)

               
              5.0

              Great Seat

              By Mom Of 2 Lovable Monsters

              from Brick, New Jersey

              About Me Parent of Two or More Children

              See all my reviews

              Pros

              • Comfortable
              • Easy to Adjust
              • Easy to install
              • Safe
              • Sturdy
              • Stylish

              Cons

                Best Uses

                • Toddlers

                Comments about Frontier 90 - Zebra:

                We purchased this seat for our 3 and a half year old daughter to replace her convertible car seat. The seat is extremely sturdy and the zebra print is adorable. We installed it with the CLICKTIGHT in about 2 minutes and I'm happy to finally have a seat that can be moved from car to car easily! We will be using the 5 point harness as long as possible before switching to booster mode. Overall we are very impressed with the quality and convenience of this seat.

                Comment on this review

                 
                5.0

                We Love This Seat!

                By Mommy of Two Girls

                from Indiana

                About Me Parent of Two or More Children

                See all my reviews

                Verified Buyer

                Pros

                • Comfortable
                • Easy to Adjust
                • Easy to install
                • Safe
                • Sturdy
                • Stylish

                Cons

                  Best Uses

                  • Toddlers

                  Comments about Frontier 90 - Cactus Flower:

                  Britax has done it right again! We recently purchased this car seat to replace our Frontier 85 after an accident. There are many improvements that have been made with this seat. The Click-Connect feature is amazing and it helps to insure a tight fit with ease. We also like that the seat is black which helps hide dirt a bit better when independent children want to get in their seat alone. This seat works great as a 5-point harness with our 4.5 year old. The only negative is how high the seat goes up. It makes it a little hard for the driver to see out the back if the seat is in the middle.

                  Comment on this review

                   
                  4.0

                  Really Like it!

                  By Lisa

                  from San Ramon, CA

                  About Me Parent of Two or More Children

                  See all my reviews

                  Verified Buyer

                  Pros

                  • Comfortable
                  • Easy to Adjust
                  • Easy to install
                  • Safe
                  • Sturdy
                  • Stylish

                  Cons

                  • Hard To Loosen The Harnes

                  Best Uses

                  • Toddlers

                  Comments about Frontier 90 - Cactus Flower:

                  We have been using this seat for about 1 week. The installation was easy and my 3 year old daughter loves the flowers and two cup holders. She even made a song about it. The problem I have with the car seat is that in order to loosen the harness, you have to reach really far into the slot. I have really long fingers and have to use my middle finger to get to it. I am not sure if people with petite hands will be able to do it. It is also awkward cause you have to push the button up instead of pushing it down. They blew it on this part of the design!

                  Comment on this review

                   
                  5.0

                  GREAT booster seat!

                  By t2family

                  from Dallas

                  About Me Parent of Two or More Children

                  Pros

                  • Comfortable
                  • Easy to Adjust
                  • Easy to install
                  • Safe
                  • Sturdy
                  • Stylish

                  Cons

                    Best Uses

                    • Toddlers

                    Comments about Frontier 90 - Zebra:

                    I'm am REALLY happy with this seat. Just got two of them for my 3 & 5 year old girls. The click tight system is easier than I thought it would be. The girls say the seat is comfortable. Love the zebra pattern too. No complaints.

                    Comment on this review

                    (3 of 3 customers found this review helpful)

                     
                    5.0

                    Best Customer Service & FF Car Seat Ever

                    By Sprout

                    from Georgia

                    About Me Parent of Multiples (Twins etc)

                    Pros

                    • Comfortable
                    • Easy to Adjust
                    • Easy to install
                    • Safe
                    • Sturdy
                    • Stylish

                    Cons

                      Best Uses

                        Comments about Frontier 90 - Onyx:

                        Britax has definitely done the job of manufacturing an easy-to-use, well-made, attractive, comfortable, SAFE seat. The labeling and instruction manual are clear and concise. The ClickTight System is simple and solid. These factors should prevent a lot of misuse. Thank you Britax for making an almost idiot-proof child restraint!

                        The seat is very cushioned and comfortable. My boys noticed and appreciated the hugs, shoulder pads, padded crotch buckle and head wings. The ClickTight hides away the seat belt very nicely, ensuring back comfort. The cup holders are much better than the clip-on type and my boys really like them. The armrests add additional comfort and keep the harness out of the way of children entering and exiting the seat. The crotch buckle stays forward and out of the way also. After watching the commercial, my boys were sad to learn that the seats don't actually talk!

                        I found adjustment and installation in harness mode to be a breeze. I didn't have any difficulty opening the ClickTight nor adjusting the harness. I appreciate Britax making it difficult for my children to reach! I installed in both the upright and recline modes and prefer the latter for my car sleepers.

                        Buy a Frontier 90 if you need a seat:
                        - to quickly move between vehicles.
                        - easy for grandparents to install.
                        - with maximum growth for a tall and/or heavy child (who has outgrown rear facing).
                        - to keep a sleeping child comfortable without head slump.
                        - to give leg room to a child who complains of sleeping legs.
                        - and you've READ the manual and found it compatible to your vehicle and your child.

                        I can only say positive things about this seat!

                        Comment on this review

                        (2 of 2 customers found this review helpful)

                         
                        5.0

                        LOVE, LOVE, LOVE this seat!!!

                        By Satcheson

                        from Lake Kiowa, TX

                        About Me Parent of Two or More Children

                        See all my reviews

                        Pros

                        • Comfortable
                        • Easy to Adjust
                        • Easy to Clean
                        • Easy to install
                        • Heavy
                        • Safe
                        • Sturdy
                        • Stylish

                        Cons

                          Best Uses

                          • Toddlers

                          Comments about Frontier 90 - Zebra:

                          I was just about to purchase a different booster, but then I saw this seat. I am glad I waited and choose the Frontier 90. It starts at 25 lbs, lower than most traditional boosters, and can keep kids in a five point harness for a long time. It is heavy, unlike many regular boosters, but not more so than our other large seats. (Personally, I like the strong and sturdy seat to protect my child, rather than to serve as a plastic place holder for the seat belt, like many of the cheap boosters.) The arm rests are at a good height, and the cup holders on both sides are great. The fabric is soft, easy to clean, and can come off without having to take the seat out of the car!

                          And now for the best part...The ClickTight install really is the easiest intallation method around. LATCH isn't overly complicated or all that difficult, but ClickTight is even EASIER! I really think it will be fairly common on all seats in the near future!!

                          I got this seat to go in Grandma's car, but it might never make it out of the "trial" in our car! I can see another Frontier 90 in our near future, and I am perfectly content with that, despite the price. (A friend scoffed when she saw the price, but after my four year old and I survived an accident that totalled our car, I am more concerned with safety than price. I'll take an expensive yet sturdy seat and feel confident in my purchase.)

                          I did lots of research and read a zillion reviews before finally deciding on this seat. I am glad I purchased this seat and highly recommend Britax and their Frontier 90!

                          Comment on this review

                          (0 of 8 customers found this review helpful)

                           
                          1.0

                          Defective or just bad?

                          By Mom

                          from san jose, ca

                          See all my reviews

                          Pros

                            Cons

                            • Bulky
                            • Difficult To Adjust
                            • Difficult to Set Up
                            • Hard to Install
                            • Heavy
                            • Poor Construction
                            • Uncomfortable

                            Best Uses

                              Comments about Frontier 90 - Onyx:

                              I was excited to find a seat that offered a harness, since my child is smaller and would not have a good fit with a seat belt, but I was soon disappointed.
                              After spending an hour trying to get the seat in, I discovered that the latch was simply too short to reach around the seat and into the car latch. I checked and spent an hour making sure I wasn't misreading the instructions, but no - the latch was too short! I don't know if I got a defective product, but this is going back right away.

                              Comment on this review

                              (0 of 1 customers found this review helpful)

                               
                              5.0

                              Great purchase… GET ONE!!

                              By Anna

                              from Union, NJ

                              About Me First Time Parent

                              Pros

                              • Comfortable
                              • Easy to Adjust
                              • Easy to install
                              • Safe
                              • Sturdy
                              • Stylish

                              Cons

                              • Heavy

                              Best Uses

                              • Toddlers

                              Comments about Frontier 90 - Desert Palm:

                              My mom watches my son during the day, and luckily I only work 5 minutes away, so if she needs a car with a car seat she drops me off at work and uses mine, but I always wanted her to have one in case of an emergency. Since she has a brand new Mercedes, she didn't want a car seat in the car all the time. So when I saw how easy this one can be installed, I ordered it right away. I read the directions and installed it within 5 minutes, if that. SO EASY!! I never installed a car seat before – my husband always does it, we have the Britax Boulevard and Britax Marathon, and I never even attempted to try. Love Britax for their great safety review, and so happy that they came out with this Click Tight technology. The Desert Palm color matches her interior perfectly and my 2.5 year old loves the seat! She can take it out and install it herself. Great purchase… GET ONE!!

                              Comment on this review

                               
                              4.0

                              Very impressed!

                              By krstnprince

                              from Virginia Beach, VA

                              About Me Parent of Two or More Children

                              Pros

                              • Comfortable
                              • Easy to Adjust
                              • Easy to install
                              • Safe
                              • Stylish

                              Cons

                              • Bulky
                              • Heavy

                              Best Uses

                              • Toddlers

                              Comments about Frontier 90 - Zebra:

                              My first initial thought was "wow this heavier than I expected" it's not crazy heavy. It's about the same weight as the Graco Nautilus (I had to replace my Nautilus). I just wasn't expecting it. Not sure why. Fabric is nice, you can tell it won't wear easily. Harness straps are thicker so they won't twist easily. Strap covers are a bit short and bulky, but my daughter didn't seem to mind. The HUGS pads (which I am not use to) don't interfere with or make adjusting anything harder. The harness is a bit of a pain to adjust. The release button to adjust the harness is quite a ways down & you have to do some fishing for it. (I don't normally tighten/loosen the straps every time I put/take the kids out, so it shouldn't be too much of an issue. There is a nice recline feature, and it seems to recline more than the Nautilus does. It seems pretty comfortable. Nice cup holders. There doesn't seem to be too many places that crumbs can end up, which is nice. Chest clip and crotch buckle are both easy to close and open. Installation of the seat with the seat belt took about 20 seconds. Yes, 20 seconds. I'm not use to Britax's 'Versa Tether' so it took me a minute or two to get that figured out and tightened. Overall, I am very impressed with this seat. I can adjust the head rest/harness while the seat is still installed in my car, without a problem.

                              My only disappointment in this seat is that the head rest/harness seems a bit flimsy. Which with how much money I spent on this seat, I expect it to be more sturdy. Other than that, I love the seat.

                              Comment on this review

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