Britax Roundabout 55 Convertible Car Seat (Current Version)

Britax Marathon 70 Convertible Car Seat (Previous Version) achieves optimum head safety through the combination of BRITAX SafeCell Technology, integrated steel bars, and a Versa-Tether, which work together to minimize head excursion and reduce the risk of head injury during a frontal impact. The seat fits children in the rear-facing position weighing from 5 to 40 pounds, and children in the forward-facing position starting at one year old and 20 pounds, up to 55 pounds.
Britax Roundabout 55 Convertible Car Seat (Current Version)

Britax Roundabout 55 Convertible Car Seat (Current Version)

Britax Roundabout 55 Convertible Car Seat (Current Version)

BRITAX 360 Degree Protection
The BRITAX ROUNDABOUT 55 features technologies that work to minimize injury to your child during a crash from any direction, including both frontal and side impact crashes - the most frequent types of crashes. These technologies work together with other features on the car seat to minimize injury to your child during a crash by:
  • keeping your child in the vehicle,
  • diverting crash forces away from your child,
  • helping to slow down your child's body,
  • minimizing movement of your child, and
  • protecting your child's brain and spinal cord.

Britax Roundabout 55 Convertible Car Seat (Current Version)


Click Here For Review : Britax Roundabout 55 Convertible Car Seat (Current Version)

Click Here For Revie : Britax Marathon 70 Convertible Car Seat (Previous Version)

Click Here For Review : Britax Roundabout 55 Convertible Car Seat (Previous Version)


Britax Roundabout 55 Convertible Car Seat (Current Version)

SafeCell Technology for Advanced Head Safety
Britax Roundabout 55 Convertible Car Seat (Current Version) Designed with SafeCell Technology, the ROUNDABOUT 55 features SafeCells, which are engineered structures located in the base of the seat designed to compress in the event of a crash. This compression significantly lowers the center of gravity and counteracts the forward rotation of the car seat, delivering unprecedented performance in a crash.

Britax Roundabout 55 Convertible Car Seat (Current Version)
The ROUNDABOUT 55 also features integrated steel bars, which strengthen the connection to the vehicle and reduce the forward flexing of the car seat. In addition, the energy-absorbing Versa-Tether anchors the top of the car seat and minimizes forward rotation to reduce the crash forces that can reach your child if an accident occurs. These three features work together as a system to provide revolutionary head safety protection for your child.

Britax Roundabout 55 Convertible Car Seat (Current Version)

Britax Roundabout 55 Convertible Car Seat (Current Version)

Side Impact Protection for Added Security
To keep your child safe in the event of a side-impact collision, the ROUNDABOUT 55 includes Side Impact Protection. Side Impact Protection is a system composed of a rigid seat shell with deep side walls and energy-absorbing EPP (Expanded Polypropylene) foam lining the shell. Britax Roundabout 55 Convertible Car Seat (Current Version) These combined features work together to protect your child's head and chest from incoming side-impact crash forces by distributing the forces over a larger surface area, helping shield your child from vehicle intrusion and contain your child's head and body in the seat.

Premium Fit and Comfort Features
Britax Roundabout 55 Convertible Car Seat (Current Version) Whether children are watching the world go by or snuggling in for a nap, they'll enjoy that the ROUNDABOUT 55 reclines in both the forward and rear positions. And thanks to additional features, which include high-density comfort foam and a plush cover set with a matching belly pad, they'll always ride in style and comfort. A 55-pound weight capacity, two buckle positions, and a tangle-free five-point harness with four harness-height settings ensure that your growing child will ride safely and comfortably. Plus, an optional Infant Positioning Insert (sold separately) allows you to properly and snugly fit smaller infants into the car seat.

Britax Roundabout 55 Convertible Car Seat (Current Version)

Ease-of-Use for Safety and Convenience
Packed with perks for parents, the ROUNDABOUT 55 makes it easy to secure your child in the proper position without guesswork. Premium lower LATCH connectors make for a quick, simple, and tight installation, while the push-button allows you to easily uninstall the connectors. Britax Roundabout 55 Convertible Car Seat (Current Version) Easy-to-access built-in lock-offs allow you to install the car seat with ease using your vehicle's lap and shoulder belt.

Additionally, an anti-slip contoured base grips and protects the vehicle seat, ensuring a tight installation in all types of vehicles. Convenient holders keep harness straps out of the way when you're placing your child in the seat.

Britax Roundabout 55 Convertible Car Seat (Current Version)
Product Description
The Britax Roundabout 55 convertible car seat is designed for children rear facing from 5 to 40 pounds and forward facing from 1 year and 20 lbs up to 55 pounds. The Roundabout 55 achieves revolutionary head safety through the use of Britax SafeCell Technology, integrated steel bars, and versa-tether that work together to minimize head excursion and reduce the risk of head injury during a frontal impact. Britax Roundabout 55 Convertible Car Seat (Current Version) The Roundabout 55 also incorporates Britax side impact protection, offers a five-point harness, and multiple buckle and recline adjustments. A body pillow is provided for comfort.

Britax Roundabout 55 Convertible Car Seat (Current Version)
Product Features
Color: Onyx

  • Safecell technology features safecells designed to compress in a crash, significantly lowering the center of gravity and counteracting the forward rotation of the child seat which normally propels the child toward the front 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 features a staged-release tether webbing to slow the forward movement, reducing the crash forces reaching the child, and a two-point attachment to minimize forward rotation while anchoring the top of the child seat
  • Side Impact Protection comprised of deep side walls lined with energy-absorbing EPP foam distributes crash forces, shields from vehicle intrusion, and contains the head, neck and body
  • Tangle-Free, Five-Point Harness distributes crash forces across the strongest parts of the body and provides a secure fit

Britax Roundabout 55 Convertible Car Seat (Current Version)
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Britax Boulevard 70 CS Convertible Car Seat

Britax Boulevard 70 CS Convertible Car Seat
The BRITAX BOULEVARD 70 CS Convertible Car Seat achieves optimum head safety through the combination of BRITAX SafeCell Technology, integrated steel bars, and a Versa-Tether, which work together to minimize head excursion and reduce the risk of head injury during a frontal impact. Britax Boulevard 70 CS Convertible Car Seat It also features easy installation, True Side Impact Protection, and the innovative Click and Safe Snug Harness Indicator. The seat fits children in the rear-facing position from 5 to 40 pounds, and children in the forward-facing position starting at one year old and 20 pounds, up to 70 pounds.

BRITAX 360 Degree Protection
The BRITAX BOULEVARD 70 CS features technologies that work to minimize injury to your child during a crash from any direction, including both frontal and side impact crashes - the most frequent types of crashes. These technologies work together with other features on the car seat to minimize injury to your child during a crash by:

keeping your child in the vehicle,
diverting crash forces away from your child,
helping to slow down your child's body,
minimizing movement of your child, and
protecting your child's brain and spinal cord.
Britax Boulevard 70 CS Convertible Car Seat

Britax Boulevard 70 CS Convertible Car Seat

Britax Boulevard 70 CS Convertible Car Seat

SafeCell Technology for Advanced Head Safety
Designed with SafeCell Technology, the BOULEVARD 70 CS features SafeCells, which are engineered structures located in the base of the seat designed to compress in the event of a crash. The BOULEVARD 70 CS also features integrated steel bars, which strengthen the connection to the vehicle and reduce the forward flexing of the car seat. In addition, the energy-absorbing Versa-Tether anchors the top of the car seat and minimizes forward rotation of the car seat to reduce the crash forces that can reach your child if an accident occurs. These three features work together as a system to provide revolutionary head safety protection for your child.

True Side Impact Protection for Advanced Security
Offering True Side Impact Protection, the BOULEVARD 70 CS delivers advanced protection if you happen to face an unexpected side-impact crash. True Side Impact Protection is a system composed of a rigid seat shell with deep side walls, an adjustable head restraint, and an extra layer of energy-absorbing EPP (Expanded Polypropylene) foam lining the head restraint. These combined features work together to protect your child's head and chest from incoming side-impact crash forces by distributing the forces over a larger surface area, helping shield your child from vehicle intrusion, contain your child's head and body in the seat, and minimize side-to-side movement of your child's head.

Britax Boulevard 70 CS Convertible Car Seat

Britax Boulevard 70 CS Convertible Car Seat

Click & Safe Technology for the Safest Fit
Britax Boulevard 70 CS Convertible Car Seat When it comes to children's safety in the car, it's vital that they are properly secured, because loose harness straps can leave them vulnerable to injury during a crash. The BOULEVARD 70 CS assists in the process of securing your child with the Click & Safe Snug Harness Indicator feature, which provides an audible sound when you are tightening the harness to indicate when it is in the range of appropriate snugness.

Premium Fit and Comfort Features
Whether children are watching the world go by or snuggling in for a nap, they'll enjoy that the BOULEVARD 70 CS reclines in both the forward and rear positions. And thanks to additional features, which include high-density comfort foam and a plush cover set with matching belly pad, they'll always ride in style and comfort. Britax Boulevard 70 CS Convertible Car Seat A 70-pound weight capacity, two buckle positions, and a tangle-free five-point harness with ten harness-height settings provide a snug, custom fit for your growing child. Plus, an optional Infant Positioning Insert (sold separately) allows you to properly and securely fit smaller infants into the car seat.

Britax Boulevard 70 CS Convertible Car Seat

Ease-of-Use for Safety and Convenience
Packed with perks for parents, the BOULEVARD 70 CS makes it easy to secure your child in the proper position without the guesswork. Premium lower LATCH connectors make for a quick, simple, and tight installation, while the push-button allows you to easily uninstall the connectors. Britax Boulevard 70 CS Convertible Car Seat Easy-to-access built-in lock-offs allow you to install the car seat with ease using your vehicle's lap and shoulder belt. The quick-adjust harness system and buckle allow you to reposition the harness-height without disassembling the harness straps.

Additionally, an anti-slip contoured base grips and protects the vehicle seat, ensuring a tight installation in all types of vehicles. Convenient holders keep harness straps out of the way when you're placing your child in the seat, and the plush cover set with matching pads removes easily for cleaning without requiring you to disassemble or uninstall the car seat.

Britax Boulevard 70 CS Convertible Car Seat Review
I am glad I chose to go with the Britax Boulevard 70. I thought it might be too big to rear-face in our 2004 Saab 9-3 sedan, but it actually fits great, and we can even use it in the middle position of the backseat. My husband is 6'2" tall, and the driver side seat still goes back far enough for him to drive comfortably. The Boulevard takes up the same amount of space (in the middle seat position) as the Baby Trend infant car seat that baby just outgrew. It's taller, though, so it comes up higher, but I can still see baby in my rearview mirror with the baby mirror we have installed on the seatback. There's just no reaching back from the driver seat to try and put a binky back in baby's mouth anymore. It's a little difficult to get baby into the seat because of the high sides and the fact that it's installed in the middle seat position--but I know he's safer in this seat than in any other, and I feel like he's even safer in the middle of the car. To put him in the seat, I have to get into the backseat while holding him, turn him a little sideways and kind of lift him up and over into the car seat. He's 22 lbs and about 28 inches long. Hard to do when he doesn't want to sit down...but that would be the case with any car seat. There's a little room to grow yet in the rear-facing position...but not a whole lot (although I don't think any seat would be able to offer much more rear-facing room--his feet are just about touching the seatback. The click-n-safe mechanism is supposed to click when the tension in the harness is tight enough, but I find that by the time it clicks, the harness is sooooo tight that my boy is very uncomfortable and whining, so I always end up loosening it a little (only enough to get one finger under the straps). The velcro tabs that hold the harness open are a nice thought, but they don't keep the upper portion of the harness out of the way--unless you completely loosen the straps each time you get baby out, so there's slack to hang over the sides of the car seat. That isn't too inconvenient, I am just used to leaving the straps adjusted for baby, like in the infant seat we had. It's really easy to tighten the straps, though, with an upward tug of the extra strap found near baby's feet. And you adjust the harness shoulder height/head protection with a click of a button and a tug, so it's super easy--no rethreading. I also like that the base of this seat is very streamlined, and there's room for people to still sit in the backseat on either side of the car seat. A lot of the other car seats we considered have HUGE profiles--this seat is remarkably 'petite' for such a high-weight capacity convertible. The seat installed in a matter of minutes with the LATCH system. The Britax Boulevard looks and feels sturdy, and I highly recommend it. Britax Boulevard 70 CS Convertible Car Seat I would save money and go without the CS feature, if you know how tight the straps should be adjusted. 

Britax Boulevard 70 CS Convertible Car Seat
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Britax Boulevard 70 Convertible Car Seat

Britax Boulevard 70 Convertible Car Seat
Britax Boulevard 70 Convertible Car Seat
Featuring an innovative design and industry-leading technology, the Britax Frontier 85 Combination Booster Seat (Rushmore) keeps your child safe and secure during car trips. Britax Boulevard 70 Convertible Car Seat Offering True Side Impact Protection and a patented, energy-absorbing Versa-Tether, this seat is engineered to grow with you child. The Frontier 85 accommodates children starting at 2 years old and 25 pounds up to 85 pounds when used as a forward-facing harnessed seat, and 40 to 120 pounds when used as a booster seat.

True Side Impact Protection for Advanced Security
The Frontier 85 Combination Booster Seat is ideal for parents concerned with providing proper safety and posture-support for their children during car rides. Offering True Side Impact Protection, this seat delivers superior protection if you happen to face an unexpected side-impact accident.

If such an event takes place, the solid head support and deep side walls work efficiently to distribute forces, shield the child from vehicle intrusion, contain the head and body, and keep the head, neck, and spine aligned to limit injury.
Britax Boulevard 70 Convertible Car Seat
Britax Boulevard 70 Convertible Car Seat
Britax Boulevard 70 Convertible Car Seat

Superior 360-Degree Protection Features
Britax Boulevard 70 Convertible Car Seat The Frontier 85 features an advanced, industry-leading design for crash force management and absorption. The patented Versa-Tether system provides a staged-release tether webbing that securely anchors the top of the child seat to your vehicle at two points to minimize forward movement in the event of a sudden stop.

The energy-absorbing base is designed to absorb impact forces, while the foam lining provides additional support. In addition, the Harness Ultra Guard System (HUGS) reduces forward head movement and offers increased protection for your child.

The Frontier 85 is also compatible with the SecureGuard feature. Britax Boulevard 70 Convertible Car Seat The optional SecureGuard clip holds the lap portion of the safety belt in place, preventing submarining--when the child slides under the lap belt--and reducing the risk of any abdominal injury.

Britax Boulevard 70 Convertible Car Seat

Adaptable to Your Growing Child
The tangle-free, five-point harness allows for 10 harness-height positions--up to an industry-leading 20 inches in shoulder harness height--and three buckle positions for a snug, comfortable fit, even as your child grows. You can also adjust the head restraint with one hand using the quick-adjust lever and easily change the harness shoulder height without disassembling the entire harness. Plus, the convenient front harness adjuster allows you to loosen or tighten the harness system easily.

The booster seat can be used in the forward-facing harnessed position for children a minimum of two years old, weighing 25 to 85 pounds, the highest capacity in five-point harness systems. As a belt-positioning booster seat, the seat is suited for children from 40 to 120 pounds.

Easy-to-Install
The Frontier 85 allows for quick, easy installation with lower LATCH connectors, compatible with most current vehicles. The premium, push-button system provides a tight, secure fit and makes it simple to install or remove the seat.Your child will appreciate the armrests that provide a natural place to rest his or her arms along with the dual cup holders designed to hold reusable water bottles or snack containers.

Britax Boulevard 70 Convertible Car Seat

I own several high weight harness seats, and this is my favorite! My son (5 yrs old, 47", and 43 lbs) has previously been in a Radian XT and a Graco Nautilus. He started to complain about the crotch strap being tight on both seats- I looked at it closer and it turns out the straps were coming out from underneath him even though they were on the furthest setting out- in both seats! We tried the Frontier 85 and he was much more comfortable- he has at least an inch or two until he'll be up against the crotch strap in the FN 85. I was worried about install, especially after reading about the original Frontier not installing well (or at all) in Toyotas. I had the FN 85 installed with the seatbelt in my '05 Highlander within 10 minutes, and that includes trying the short belt path first (I had to recline the seat and use the long belt path, but I have a rock solid install.) It really helps to watch the Britax install videos before trying to install it, as I could see how I would have had some trouble if I didn't watch the video first. The 9 year lifespan of the set is also a huge bonus!
Britax Boulevard 70 Convertible Car Seat

After doing the prerequisite research on all the car seats available, We decided on the Frontier. It seems to me that all the seats were decent, it boils down to a personal choice. We based our choice on features and safety. The seat appeals to me because of the height adjustment feature and its ability to grow with our child up until she only needs the booster alone. Our 3 year old had grown out of our Marathon but was not ready of course to be in a booster without at least a 3 point harness. I am, so far very pleased with the seat. The only complainst or comments I have are: The seat has a net like material on top of the microfiber on the seat..The netting gets caught on everything like velcro and snaps. It became ripped within the first week. I would rather have had the microfiber that is on the marathon (it does not appear that I can cut the netting out). Second, the seat is a little difficult to install. We went to the Fire Department as I had in the past and they had no idea how to install it seeing how its so new to the market. I called an install expert who came out to the house and installed it properly so we could see for ourselves how it should look. Third, the crotch buckle is really difficult to adjust, it took the expert and myself more than 15 minutes to get the buckle through the slot. Overall, I like the seat and would reccomend it.

Britax Boulevard 70 Convertible Car Seat

I own several high weight harness seats, and this is my favorite! My son (5 yrs old, 47", and 43 lbs) has previously been in a Radian XT and a Graco Nautilus. He started to complain about the crotch strap being tight on both seats- I looked at it closer and it turns out the straps were coming out from underneath him even though they were on the furthest setting out- in both seats! We tried the Frontier 85 and he was much more comfortable- he has at least an inch or two until he'll be up against the crotch strap in the FN 85. I was worried about install, especially after reading about the original Frontier not installing well (or at all) in Toyotas. I had the FN 85 installed with the seatbelt in my '05 Highlander within 10 minutes, and that includes trying the short belt path first (I had to recline the seat and use the long belt path, but I have a rock solid install.) Britax Boulevard 70 Convertible Car Seat It really helps to watch the Britax install videos before trying to install it, as I could see how I would have had some trouble if I didn't watch the video first. The 9 year lifespan of the set is also a huge bonus!

Britax Boulevard 70 Convertible Car Seat
Britax Boulevard 70 Convertible Car Seat
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