Britax Marathon Convertible Car Seat

Car Seats > Car Seats Rated: ***** by 33 reviews
Britax

BabyAge.com

The standard length of a marathon is 26.2 miles, and the Britax Marathon Convertible Car Seat will cover more than 100 times that distance.

The Britax Marathon Convertible car seat is one of the most functional seats to ever hit the market. Slightly larger than other Britax Car Seats, the Marathon is legendary for safety and comfort. It's important to note that the shell of the car seat is a bit bulkier than others, so parents should allow for about 31 inches of seat space when used rear facing.

Some of the unique features on the Britax Marathon Convertible Car Seat include a five-point polyester harness with no-tangle polyester webbing, built in lock-offs for the car’s seat belts, and a push-button LATCH system with VersaTether. This Britax Car Seat provides the utmost security in both forward and rear facing installations. The Britax Marathon has Expanded PolyStyrene (EPS) padding to protect your baby in the event of a collision. Britax convertible car seats are equipped with their patented HUGS system, which is designed to better distribute webbing loads to reduce head movement and minimize the chance for the webbing's edge to load on the child’s neck.

The Britax Marathon provides parents with an all around top-rated car seat. However, it might be too large for compact cars. For those looking for a smaller Britax Car Seat, the Britax Roundabout is a perfect choice. It is a little smaller than the Britax Marathon, and it is designed for children weighing up to 40 pounds.

Features:

  • Approved for aircraft use and conforms to all applicable federal Motor Vehicle Standards
  • Belly pad for added comfort and protection
  • Britax Marathon Convertible Car Seat has a Five-Point Polyester Harness for a secure fit
  • Britax Marathon has a sculpted base for a perfect fit
  • Built in Lock-Offs, both forward facing and rear facing, are designed for easy reach and operation when using traditional belt routing
  • Expanded PolyStyrene (EPS) foam insert to increase available shoulder width room
  • Fabric is removable and hand washable
  • Forward facing for children weighing 34 to 65 pounds
  • Four different shoulder harness positions will accommodate the taller child and are easy to adjust
  • HUGS System is designed to better distribute webbing loads to reduce head movement and minimize the chance of injury
  • Interior Seat Dimensions: 11D x 11W x 23.5H inches
  • LATCH connectors are stored under the fabric on either side and should be inserted with the rounded side up
  • LATCH equipped
  • Maximum child height of 49 inches
  • One-hand recline adjustment
  • Product Dimensions: 28 inches high x 19.5 wide x 25 deep
  • Product manual is tucked under the fabric of the seat
  • Rear facing for children weighing 5 to 35 pounds
  • Seat weight: 17.5 pounds
  • Use vehicle seat belt (not LATCH connectors) for installations with children weighing more than 48 pounds
  • Velcro belt holders keep belts aside while boarding

Diapers.com

Britax Marathon Convertible Car Seat - Onyx Most Current Model! The Britax Marathon is a convertible car seat ideal for parents seeking premium comfort and a higher, forward-facing harnessed weight capacity. The seat features side impact protection, which distributes crash forces, shields from vehicle intrusion, and contains the head and body. The tangle-free, five-point harness with four harness heights ensures a snug and secure fit. Premium push-button LATCH connectors provide a quick, simple and tight installation. Unique features include the patented Versa-Tether for energy management, and rear- and forward-facing recline for child comfort and positioning. Features: - Side Impact Protection distributes crash forces, shields from vehicle intrusion, and contains the head, neck and body - Patented, Energy-Absorbing Versa-Tether@ with staged-release tether webbing, anchors the top of the child seat at two points to minimize forward movement in a crash - Tangle Free, Five-Point Harness with 4 harness heights for a snug and secure fit - Harness Ultra Guard System (HUGS) reduces forward head movement and cushions the chest in the event of impact - Energy-Absorbing Foam Liner absorbs and distributes crash forces - Energy-Absorbing Base deforms in the event of a crash to absorb impact forces - 65-pound Weight Capacity for safety and comfort through the toddler years - Rear and Forward Facing Recline for child comfort and positioning - High Density Comfort Foam provides an extra layer of padding to gently cushion the child - Plush, Premium Cover Set with matching belly pad provides extra comfort - Premium, Push-Button Lower LATCH Connectors for a quick, simple, and tight installation - Built-in Lock-Offs secure the vehicle seat belt so that the child seat does not move more than one inch side-to-side or front-to-back at the belt path - Front Harness Adjuster provides effortless front adjustment when loosening the harness system - Small Contoured Base ensures a tight installation in all types of vehicle seats - Convenient Harness Holders keep harness straps out of the way while placing child in the car seat -Seating Compartment Height: 24.5" -Seat Area Depth/Width: 9"/11" -Shoulder Width: 11.75" -Harness Slot Heights: 10" / 12.25" / 14.5" / 16.75" -Buckle Strap Depth: 5.25" Recommended Use: Rear Facing -Child Weight: 5 lbs. - 35 lbs. -Standing Height: 49" or less -Seated Shoulder Height: 10.5" - 16" Recommended Use: Forward Facing -Child Weight: 1 year & 20 lbs. - 65 lbs. -Standing Height: 49" or less -Seated Shoulder Height: 12" - 16" Product Dimensions: 18.7" W x 26.9" H x 24.4" D (Exterior) Product Weight: 17 lbs.

Babies R Us

The Britax Marathon Convertible Car Seat in Mariposa is ideal for parents seeking premium comfort and a higher, forward-facing harnessed weight capacity. The tangle-free, five-point harness with four harness heights ensures a snug and secure fit. Premium push-button LATCH connectors provide a quick, simple and tight installation. Unique features include the patented Versa-Tether for energy management, and rear- and forward-facing recline for child comfort and positioning. The Marathon fits children rear facing from five to 35 pounds and children forward facing from at least one year old and 20 pounds, up to 65 pounds. The Britax Marathon Convertible Car Seat in Mariposa is made in the USA with U.S. and global components. Britax has been a pioneer in child passenger safety for more than 35 years, with a legacy of leadership in developing innovations that enhance the safety of child car seats and improve their ease of installation and use. Our uncompromising focus has made Britax the best-selling child seat in Europe and one of the brands most trusted by American parents and caregivers since entering the U.S. market in 1996. At Britax, our commitment to improving child safety is unparalleled, as evidenced by the fact that all Britax products undergo the most rigorous testing in our industry at five Britax testing facilities worldwide. At Britax, we also work closely with vehicle manufacturers to encourage design improvements that enhance the performance of child car seats. In addition, Britax maintains an ongoing dialogue with consumers, child passenger safety technicians and other child safety advocates to ensure proper installation and use of child car seats and develop new ideas to improve their safety and ease of use.

Features:

  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • Higher forward facing seat capacity allows children to remain harnessed up to 65 pounds
  • Patented Versa-Tether® anchors top of seat to minimize movement in a crash
  • Premium push-button LATCH connectors for a quick, simple and tight installation
  • Side Impact Protection distributes crash forces, shields from vehicle intrusion, and contains the head and body
  • Tangle-free, five-point harness with four harness heights for a snug and secure fit
  • This item can be shipped to all 50 United States including Alaska & Hawaii
  • This item is NOT eligible for shipping to APO/FPO addresses, U.S. Territories, Puerto Rico or P.O. Boxes
  • This item may be shipped via Standard Shipping, Expedited Shipping or Express Shipping
  • This item will ship by itself

BabyEarth.com

The legendary Britax Marathon convertible car seat is your ideal selection for comfort, safety and convenience for infants and children of all ages. Many parents say it takes the guesswork out of properly fitting your child into a convertible car seat because its so easy to adjust the harness straps to fit your little one. This versatile car seat can accomodate children rear-facing from 5 to 33 pounds and children forward facing from 1 year old and 20 pounds up to 65 pounds. The built-in vehicle belt lock-offs are only one of the many factors that make the Marathon simple to install wherever you are whether that be a car or an airplane. The clips keep the car seat installed tightly when using seat belt routing. And the Marathon ensures the highest level of safety.

The Marathon's Versa-Tether system is usable with the top tether points on newer vehicles. This allows you to anchor the top of the car seat and prevent unsafe tilting for your child. Combined with LATCH system connectors with a push-button release, these assets will make certain the most sturdiest and safest possible installation in your vehicle. Not to mention the unique and patented "floating" HUGS System, which includes a belly pad and a soft, washable and stain resistant seat cover to add some comfort to safety. While the harness straps on many other carseats can tend to twist after several uses, this seat's straps are meant to stay smooth, which reduces the chance of improperly positioning the chest clip. The Marathon is designed to reduce head movement for your child and keep the child's head and neck safe in all situations. EPS protective foam surrounds your child's head and torso for maximum protection. These systems along with a sculpted base reduce G-force effects on the head and the body of a child in the event of an impact.

The Marathon, like all Britax car seats, comes in a wide variety of colors and patterns to suit any taste and ensures a comfortable and safe ride for any size child. The Marathon is also approved for airplane use.

Specifications:
  • Rear Facing: 5 lbs. to 33 lbs.
  • Forward Facing: 1 year old and 20 lbs. / up to 65 lbs.
Gift Wrap not available.
Shipping Note:This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO boxes, US territories, or APO/FPO addresses.


BabyUniverse

The Britax Marathon Convertible Car Seat in Mariposa is ideal for parents seeking premium comfort and a higher, forward-facing harnessed weight capacity. The tangle-free, five-point harness with four harness heights ensures a snug and secure fit. Premium push-button LATCH connectors provide a quick, simple and tight installation. Unique features include the patented Versa-Tether for energy management, and rear- and forward-facing recline for child comfort and positioning. The Marathon fits children rear facing from five to 35 pounds and children forward facing from at least one year old and 20 pounds, up to 65 pounds. The Britax Marathon Convertible Car Seat in Mariposa is made in the USA with U.S. and global components.

Features:

  • Higher forward facing seat capacity allows children to remain harnessed up to 65 pounds
  • Patented Versa-Tether® anchors top of seat to minimize movement in a crash
  • Premium push-button LATCH connectors for a quick, simple and tight installation
  • Side Impact Protection distributes crash forces, shields from vehicle intrusion, and contains the head and body
  • Tangle-free, five-point harness with four harness heights for a snug and secure fit

View other products from Britax classified in Car Seats > Car Seats.

View all products from Britax.
View other products classified in Car Seats > Car Seats.

Sometimes, we can't be sure that the product is the same across the stores that offer its, so you may find the same product listed more then once on BabyGearBuyer, we these list highly similar products below.

Marathon convertible car seat Britax Marathon convertible car seat
(2 retailers)
$1.00
Marathon 70 Convertible Car Seat Britax Marathon 70 Convertible Car Seat
(5 retailers)
$279.99
Marathon Car Seat Cover Britax Marathon Car Seat Cover $70.00
silver star BabyGearBuyer Top 25 Category Product
View other top products in this category...

Option Availability:

Use this chart to find which retailer offers this product in the size, color or other options that you desire. Click on the price in the table to go to that retailer to purchase.

Color
Labyrinth
Labyrinth
279.99279.99
Louisiana State University
Louisiana State University
279.99
Grey Herringbone
Grey Herringbone
229.99
Onyx
Onyx
251.99279.99279.99279.99
Platinum
Platinum
259.99279.99
Cowmooflage
Cowmooflage
251.99279.99279.99279.99

Legend

  •     - Babies R Us
  •     - BabyEarth.com
  •     - BabyUniverse
  •     - Diapers.com

Notes:

BabyAge.com offers this product at $279.99, but does not provide any color/size information.

Britax Marathon Convertible Car Seat Reviews Summary:

RatingNumber
of Reviews
21
10
1
1
0

Positive Reviews:

My Daughter Loves This Car Seat!

KMW at Babies R Us on 02/02/2010
Rating:
My husband and I went rounds about what type of car seat to purchase for our daughter. I had read many reviews about the Britax Marathon, and he follow Consumer Reports. He did not want to spend a lot if we didn't have to. We agreed to buy the Britax for my vehicle and the less expensive (Evenflo Triumph) for his vehicle. <br /><br />When we first installed the car seat it was a bit challenging, but truly once you do it, it is not a big deal after that. <br /><br />As many others have mentioned this is a very comfortable car seat. My daughter loves this seat. In my husband's car seat her head would always fall forward even in the farthest position back when she would sleep and she always appeared uncomfortable. That does not happen w/ the Britax. She just lays back and sleeps. <br /><br />I have washed the cover a few times. I was worried it would be difficult as some have mentioned to me what a pain it is to clean their car seats, but I found this to be very simple to get off. It is easy to wipe down or vacuum any crevices also.<br /><br />Tightening/loosening the straps and seats on the child is very easy also. I have found it very difficult to adjust the straps on my husband's car seat in comparison. The Britax is very simple, it is a matter of lifting a notch to loosen the straps, and then pulling the strap back down to tighten. Adjusting the straps for height is a bit more complicated because you feed the straps through the back, so they need to be pulled out and then re-threaded. It seems I have only had to adjust them once so far and we got my daughter at 9 months, she is now 2 1/2. I did the re-threading when I was taking it out to wash the cover, so no big deal.<br /><br />The car seat is very sturdy and extremely safe. This seat does not budge at all! I feel confident that if something were to happen my daughter would be completely safe using this car seat. <br /><br />When all was said and done, my husband said to me, &quot;I wish we had gotten the Britax for my car too!&quot;

Luxury ride for your little one

Cheryl mom of 5 at Babies R Us on 05/05/2010
Rating:
The Britax Marathon is an easy to use car seat, installs easily in a large range of vehicles, and has nice comfort features (nice, comfy cover that is easy to remove and wash, non twisty straps, built in locking clips). Two of my kids rode in Marathons from the time they outgrew their infant seats until age 4-5, outgrowing it by height long before they hit 65 lbs.<br /><br />My one caveat is that although Britax says you can use this seat for newborns, the harness slots are too high to do so. According to the user's manual, the harness slots need to be AT or BELOW the child's shoulders, but even the lowest slots are too high for the vast majority of newborns.<br /><br />As much as I loved the Marathons I bought for my 3rd and 4th children (purchased in 2003 and 2006), I didn't buy another for my 5th child. Britax has been very slow keeping ahead of companies like Graco, Sunshine Kids, The First Years and Safety First, and now seats with many of the same features are available at a more affordable price, which kind of diminishes the value of Britax seats.

Simple-to-use, well-made seat

Paul at Babies R Us on 07/07/2010
Rating:
I installed the Marathon about a month ago in my Mazda5. I have 8-month-old twins, and getting them in and out of the car efficiently is pretty important. I love the strap system--it seems very stable and it's goes around the boys' arms easily without any loosening and tightening (as I needed to do with my infant seat). The crotch area is a little tight but once they are in the boys don't seem to mind.<br /><br />Installation was a bit difficult as the strap used to secure to the latch system was not long enough to give me enough slack to easily attach the seats while the seat bottom was up. I ended up attaching one first, closing the seat bottom, and then wedging the second connection between the seat bottom and back.<br /><br />The strap adjustment was not as difficult as I expected. I recommend putting your child in the seat to figure out the height needed before you attempt your first trip. Takes about 5 minutes to adjust both straps.

Great

joanna at Babies R Us on 06/06/2010
Rating:
I bought our Marathon after extensive research and looking. I wanted the safest and most comfortable seat for our little one. I was thrilled the first time I installed the seat rear facing in our SUV. It was easy to do and fit well. All convertible seats seem big and bulky, but I was pleased at how easy the install went and could definitely tell that our little one was comfortable. The Strap adjustment is easy, I like the HUGS, and the velcro for the straps on the sides is an awesome added feature. I haven't tried the versa tether or forward facing position yet, but when I do the manual is easy to follow. <br />I think this seat is worth the cost to keep my baby safe and comfortable. I feel confident we got the right one and like it that we can use this seat until 65lbs. Also- the cover pops right off so cleaning will be a snap!

Wish I could keep this forever

Windy City Mom at Babies R Us on 07/07/2010
Rating:
We bought the Britax Marathon when our son outgrew his infant car seat...that was nearly five years ago! This seat is easy to install in any car. Easy to clean. The seat belts on it have not worn down or curled up as I see in many other friend's car seats that are not Britax. We were rear ended a few months ago and our son was with us....knowing that he was in a top of the line seat in terms of safety and that we have always taken the time to ensure the seat belt is properly on, eased some of worries associated with this situation. This is why our new booster is also a Britax. It arrived today. I know that the price tag on Britax is an eye opening sticker shock for some but until you've been involved in an accident the only true eye opener is that your child's safety really has no price.

Best car seat, no question!

Albie at Babies R Us on 06/06/2010
Rating:
I have three children and all of them had a Britax Marathon car seat. We went through three other car seats trying to find one that was comfortable, easy to install, made well, and most of all - safe. We decided to bite the bullet and spend the money on a Britax. By far the best car seat we've owned! We always felt it was the most capable of protecting our children in the event of an accident. Very easy to install as well. I particularly loved how tight and secure we could secure it to the seat. This car seat is made very well also. We have had the latest one for 4 1/2 years and it hardly appears used. All I need to do is give it a bath and it'll look brand new :)<br /><br />I would highly recommend this product to everyone!! I know it's pricey, but it is very much worth every penny!!

Awesome carseat, safest out there.

Katey Mom at Babies R Us on 07/07/2010
Rating:
Purchased this car seat for my husband's car, we already have the Marathon (mariposa) in mine. I shopped around and at the time it was on sale and with coupons, BRU had the best price online I could find. I am not crazy about the cover just because it is so dark and being summer right now, I think it is extra warm for my daughter but I'm sure once the fall comes around it won't be an issue at all. The fabric IS very soft and comfortable. My daughter is 15 mos. and sits comfortably rear facing and we intend to keep her that way as long as possible. I think the install with this seat is tough just until you get the hang of it. Love the design, the velcro patches to hold the straps in place. Very happy with this carseat!

Fabulous carseat!

On the go Mommy! at Babies R Us on 05/05/2010
Rating:
This is a fabulous car seat. I am so impressed with it, from top to bottom. I was debating between the Marathon and the Boulevard. I didn't mind the extra cost of the Boulevard, but thought my daughter would like the comfort of the Marathon better. Well, I bought the Marathon (and I don't know if my daughter would have liked the Boulevard or not), and my daughter LOVES it! Although my eight month old is generally a VERY happy baby, hardly ever crying...in the car, she was crying 90% of the time in her infant car seat. Now, she is a happy little thing in the car, just from the switch to this car seat. It was easy to install, easy to put her in the car, easy all the way around. LOVE IT! Thanks Britax!

LOVE the Marathon

Kathy- GA Mom of 1 at Babies R Us on 07/07/2010
Rating:
Our 7 month old is growing fast - already 20 lbs and 28 inches... we had the infant/GracoSung Ride and LOVED that also... but he is just too big to carry in that anymore, so we have move onward and upward - we love this seat, it fits in our 04 Jeep Liberty and actually provides us with more room for the front seat to recline than the infant seat did. Our little guy seams to love it also - no more struggles to get into the harness which is simple to utilize.. the seat was easy to install (after I located the latches hiding under the seat cover!). I highly recommend!!!

Definitely worth the investment

c's mom at Babies R Us on 06/06/2010
Rating:
We were hesitant to spend the extra money on a Britax, but so glad that we did. It is the ONLY seat that has 2 LATCH anchors which makes the base very stable and no movement whatsoever. Our son loves to face forward and looks very comfortable in his seat. when he sleeps in his seat, his head does not look awkward at all. However, not the best seat for rear-facing. Our son is very tall for his age and we tried to keep him rear facing but there was absolutely no leg room. Did a lot of research on forward facing seats and this was by far the best seat!

Negative Reviews:

It's just OK

Kari, mother of 2 at Babies R Us on 02/02/2010
Rating:
This seat is just OK. We have had this seat for about a year and a half now. My daughter doesn't seem content in this seat for extended periods of time, even with the DVD player going in the back seat. THe crotch strap always gets stuck under her butt when she gets in the seat. On top of that it does not wash well. Also, you have to take the entire ar seat out of your truck/cat to adjust the straps. This included taking off the cover, padding and then re-thredding the straps and putting it all together again. It's not a horrible car seat but I would expect a lot more for the price that we paid for it. We purchased a less expensive seat for my son and couldn't be happier with it! I would not suggest that my family/friends get this seat for their children.

Neutral Reviews:

Just ok

blessedVAmom at Babies R Us on 02/02/2010
Rating:
This seat looks very nice and has a great safety rating. The only problem is that it just doesn't quite fit my son correctly. He is in the 50th percentile in both weight and height, and still seems to be angled incorrectly in it. I know that the seat is installed properly, but he just isn't as comfortable as he was when he was in his carrier (Graco SafeSeat).