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Description

The Britax Frontier ClickTight Combination Harness-2-Booster boasts the ground-breaking ClickTight Installation System combined with Britax’s leading Head Safety technologies. The Frontier CT keeps your growing toddler safe and offers parents the peace of mind of a secure and easy car seat installation each and every time.The ClickTight Installation System allows parents to easily achieve a safe and secure installation using the vehicle seat belt throughout the life of the seat, in harness mode, without having to worry about the weight of their child (May not be compatible with all vehicles. See installation instructions.)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 “in true” or alignedBase with SafeCell Technology - designed to keep your child safe and secure in a crash by compressing and significantly lowering the center of gravity, reducing the forward movement of the car seatThis is a final sale item. No exchanges or returnsTo view our Car Seat and Stroller compatibility chart, click here

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The Britax Frontier ClickTight Combination Harness-2-Booster boasts the ground-breaking ClickTight Installation System combined with Britax’s leading Head Safety technologies. The Frontier CT keeps your growing toddler safe and offers parents the peace of mind of a secure and easy car seat installation each and every time.


The ClickTight Installation System allows parents to easily achieve a safe and secure installation using the vehicle seat belt throughout the life of the seat, in harness mode, without having to worry about the weight of their child (May not be compatible with all vehicles. See installation instructions.)


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 “in true” or aligned


Base with SafeCell Technology - designed to keep your child safe and secure in a crash by compressing and significantly lowering the center of gravity, reducing the forward movement of the car seat


This is a final sale item. No exchanges or returns



To view our Car Seat and Stroller compatibility chart, click here




  • 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. Stage-released stitching helps reduce the crash forces reaching the child
  • EZ-Buckle System retains the harness buckle in a forward position and prevents the child from sitting on the buckle when boarding
  • Integrated Steel Bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash
  • Tangle-Free, Five-Point Harness (with 9 harness height positions -up to 20.5”) distributes crash forces across the strongest parts of the body and provides a secure fit
  • Front-Adjust Recline for optimal child comfort
  • Two Buckle Positions offer a snug and secure fit for your growing child
  • Armrests provide a natural and comfortable place to rest arms
  • Quick-Adjust No-Rethread Harness easily adjusts the harness shoulder height and head restraint from the front of the seat without disassembling the harness straps
  • Easy transition from Harness to Booster mode without removing harness straps
  • Integrated Cup Holders and Storage are designed for easy access to children’s cups, snacks and toys
  • 120 lb (54.4 kg) Weight Capacity in Booster Mode for safety and comfort as your child grows
  • 65 lb (29.4 kg) Weight Capacity in Harness Mode allows your child to remain harnessed up to 65 lbs (29.4 kg)
  • Easy-Remove Cover allows easy cleaning without disassembling the harness or uninstalling the car seat
  • Color-Coded Vehicle Belt Guides provide clear indication of the path and positioning of the vehicle seat belt for use in either harness or booster mode
  • Harness Ultra Guard System (HUGS) provides resistance to forward movement in the event of a crash
  • Compatible with SecureGuard 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, thus minimizing the risk of abdominal injury (accessory sold separately)
  • Premium LUAS Connectors included
  • Harness-2-Booster converts to a belt-positioning booster seat
  • Certified for Aircraft Travel in Harness Mode

See Less

The Britax Frontier ClickTight Combination Harness-2-Booster boasts the ground-breaking ClickTight Installation System combined with Britax’s leading Head Safety technologies. The Frontier CT keeps...

See More

The Britax Frontier ClickTight Combination Harness-2-Booster boasts the ground-breaking ClickTight Installation System combined with Britax’s leading Head Safety technologies. The Frontier CT keeps your growing toddler safe and offers parents the peace of mind of a secure and easy car seat installation each and every time.


The ClickTight Installation System allows parents to easily achieve a safe and secure installation using the vehicle seat belt throughout the life of the seat, in harness mode, without having to worry about the weight of their child (May not be compatible with all vehicles. See installation instructions.)


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 “in true” or aligned


Base with SafeCell Technology - designed to keep your child safe and secure in a crash by compressing and significantly lowering the center of gravity, reducing the forward movement of the car seat


This is a final sale item. No exchanges or returns



To view our Car Seat and Stroller compatibility chart, click here




  • 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. Stage-released stitching helps reduce the crash forces reaching the child
  • EZ-Buckle System retains the harness buckle in a forward position and prevents the child from sitting on the buckle when boarding
  • Integrated Steel Bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash
  • Tangle-Free, Five-Point Harness (with 9 harness height positions -up to 20.5”) distributes crash forces across the strongest parts of the body and provides a secure fit
  • Front-Adjust Recline for optimal child comfort
  • Two Buckle Positions offer a snug and secure fit for your growing child
  • Armrests provide a natural and comfortable place to rest arms
  • Quick-Adjust No-Rethread Harness easily adjusts the harness shoulder height and head restraint from the front of the seat without disassembling the harness straps
  • Easy transition from Harness to Booster mode without removing harness straps
  • Integrated Cup Holders and Storage are designed for easy access to children’s cups, snacks and toys
  • 120 lb (54.4 kg) Weight Capacity in Booster Mode for safety and comfort as your child grows
  • 65 lb (29.4 kg) Weight Capacity in Harness Mode allows your child to remain harnessed up to 65 lbs (29.4 kg)
  • Easy-Remove Cover allows easy cleaning without disassembling the harness or uninstalling the car seat
  • Color-Coded Vehicle Belt Guides provide clear indication of the path and positioning of the vehicle seat belt for use in either harness or booster mode
  • Harness Ultra Guard System (HUGS) provides resistance to forward movement in the event of a crash
  • Compatible with SecureGuard 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, thus minimizing the risk of abdominal injury (accessory sold separately)
  • Premium LUAS Connectors included
  • Harness-2-Booster converts to a belt-positioning booster seat
  • Certified for Aircraft Travel in Harness Mode

See Less

Product reviews

  1. star star star star empty_star 4.0 out of 5 stars

    Great seat!

    I bought this seat for my 3.5yr old and she loves it [comfort & cupholders]! I love how easy it was to install [and it does not move at all with CT]. The only thing that I find a little finicky

    is the bottom part of the harness

    can be difficult to click in-sometimes one side is in & pops out when I insert the other side.

    Take home msg is I wold recommend & buy again

  2. star star star star star 5.0 out of 5 stars

    Best combination seat money can buy

    I bought a Frontier a few years ago for my daughter who used it from the time she was ff at 3 until about age 7 with the 5 point harness

    and still uses it now at 9 as a booster.

    The Frontier is by far the best seat we have used

    and will be purchasing a new one for baby #2.

  3. star star star star empty_star 4.0 out of 5 stars

    Easy to install

    Love this car seat so easy to install

    comfy for sleeping amazing

  4. star star star star star 5.0 out of 5 stars

    Excellent and Easy to install

    Love this car seat

    I bought it on sale and am so pleased with it. It was the perfect addition to my need to transition to a harnessed booster at 3 years old. I previously had the Britax BSafe and Marathon G4 so I knew the quality however this was the first purchase of a click tight seat and if you can pay the extra money it is worth it....I had thought it wasn't a big deal which is why the Marathon was not a CT but now I can only say how amazing it is. We have since purchased a Pinnacle CT as well for our main seat.

  5. star star star star star 5.0 out of 5 stars

    So easy to install!!! Kid loves it too.

    Got the seat for my son who is 41lbs 38\" & 2 1/2 yes old. He loves the arm rests and cup holders. We have it reclined and he is able to sleep in it fine.

    Installing it was amazing!! Simple

    speedy and secure.

    The tether strap took the most amount of time. I could easily give this to my in-laws to install in their vehicle and be confident that my child will be safe with them.

    the harness took some time to get adjusted to the right fit and to be familiar with it. It is a bit hard to pull on the strap and tighten it but after having it for a few trips we are happy with its performance.

    it is so easy to adjust the straps so you don't have to uninstall mercy you just pull the lever and the height adjust automatically. and when it's time to put the seat in booster mode it's very easy to move the harness straps out of the way. I'm so pleased we purchased this car seat and highly recommend it to anyone!

  6. star star star star empty_star 4.0 out of 5 stars

    Easy to install^ heavy.

    Purchased this for my four year old who is 42 inches tall and about 40 pounds. I wanted to keep him in a harness booster for as long as I could.

    Its Britax

    so great quality. Its quite heavy but very easy to install. Husband and I couldn't believe we installed it in one try and it didn't budge when pushed side to side [installed with click tight and belt].

    Love it

    our son loves the arm rests and cup holders.

  1. star star star star empty_star 4.0 out of 5 stars

    Great seat!

    I bought this seat for my 3.5yr old and she loves it [comfort & cupholders]! I love how easy it was to install [and it does not move at all with CT]. The only thing that I find a little finicky

    is the bottom part of the harness

    can be difficult to click in-sometimes one side is in & pops out when I insert the other side.

    Take home msg is I wold recommend & buy again

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