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Britax New Marathon 70 Convertible Car Seat - Onyx - Britax  - Babies"R"Us
 
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Britax New Marathon 70 Convertible Car Seat - Onyx

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Description



The Britax Marathon 70 convertible car seat is designed for children rear facing from 5 to 40 pounds and forward facing up to 70 pounds. The Marathon 70 achieves revolutionary head safety through the use of patent-pending 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. The Marathon 70 also incorporates Britax Side Impact Protection, offers a no-rethread, five-point harness, a quick-adjust head restraint, multiple buckle and recline adjustments, and an easy access cover and access to belt paths from the front of the seat. A head and body pillow is provided for comfort and infant positioning.

The Britax Marathon 70 Convertible Car Seat - Onyx features:

  • The Britax Marathon 70 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 70 pounds.
  • 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.
  • 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.
  • Quick-Adjust Harness repositions the harness shoulder height without disassembling the harness straps.


Features

  • The Britax Marathon 70 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 70 pounds.
  • 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.
  • 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.
  • Quick-Adjust Harness repositions the harness shoulder height without disassembling the harness straps.


Additional Info

803777

65BCF65E

652182063917

E9LB11A


Gift wrap is not available for this item.




22.9 pounds

29.6 x 18.9 x 18.5

HOW TO GET IT


  • This item can be shipped to the entire United States including Alaska, Hawaii, and all U.S. territories including Puerto Rico
  • This item can also be shipped to APO/FPO addresses and to P.O. Boxes in all 50 states
  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • This item will ship by itself



  • This item may be shipped via Standard Shipping, Expedited Shipping or Express Shipping
  • Please Note: Some addresses are eligible for Standard Shipping only (APO/FPO, P.O. Boxes, U.S. Territories and Puerto Rico)


(learn more):
  • This item is sold online only (not sold in stores)
  • Orders placed for Store Pickup will receive online pricing and promotions
  • In-stock status is approximate and may not reflect recent sales
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Customer Reviews Summary & Ask a question

Average Customer Rating:

by PowerReviews
Britax New Marathon 70 Convertible Car Seat - Onyx
 
4.3

(based on 18 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

88%

of respondents would recommend this to a friend.

Pros

  • Comfortable (15)
  • Safe (14)
  • Durable (13)
  • Easy to install (13)
  • Easy to adjust (10)

Cons

  • Heavy (5)

Best Uses

  • Toddler (14)
  • Infants (11)
    • Reviewer Profile:
    • First time parent (12), Parent of two or more children (6)

Most Helpful Positive Review

 

Now Loyal User of Britax products

I happened to purchase a Britax Marathon on clearance one day when replacing my Graco Snug Ride Infant car seat and have been using this since my son turned a year old. Just recently, ...Read complete review

I happened to purchase a Britax Marathon on clearance one day when replacing my Graco Snug Ride Infant car seat and have been using this since my son turned a year old. Just recently, my now 2 year old (almost 3) and I were in a car accident where I was rear-ended while sitting at a red light. Jack's car seat barely moved & it took 3 people to get the car seat undone to put him in the ambulance. Being that I was 17 weeks pregnant at the time and I wasn't risking the health of either child, I wanted to have an MD check us out. Jack was cleared quickly at the ER. What really indicated to me that Britax is the best, is that Jack didn't cry, didn't appear to be hurt at all (not even by the straps) and he impressed the firefighters and EMTs at the scene with his responses to their quesitons. I will be a loyal user of any Britax product from here on out. As suggested, I will be replacing the carseat in the accident with a new Britax car seat, then booster seat when the time comes. Thank you Britax for your dedication to the safety of the children you protect.

VS

Most Helpful Critical Review

 

Did not work for our child

This seat does seem really nice and secure. But beware Britax seats if you have a child that likes to chew on things. The rubbery "hugs" that go on the straps a...Read complete review

This seat does seem really nice and secure. But beware Britax seats if you have a child that likes to chew on things. The rubbery "hugs" that go on the straps are easily chewed on by little ones- it doesn't matter how tight the straps are- they can be pulled up. Our son has chewed through three sets of them in a one month period and now we have to buy a new seat.(from a different company of course) Britax had no solution to offer us- just said the hugs must be used. Poor design. Our other son has had no problems with his but he was never one to chew on things.

Reviewed by 18 customers

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Displaying reviews 1-10

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5.0

AWESOME!!!

By Busy Momma in MN

from MN

About Me First Time Parent

Pros

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

Cons

    Best Uses

    • Infants
    • Toddlers

    Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

    We had a Britax Roundabout 50 and 55 and loved them. My husband recently hit a deer (thankfully with our son NOT in the car) and we had to replace the 50 that had been in his car at the time of the hit. We purchased this car seat and it is even BETTER than the 50 and 55! We absolutely love how comfy it is and how incredibly easy it is to adjust! We want to buy another to replace the 55 because you don't have to re-thread the belt when adjusting the height. They are worth every penny you spend on them! He even sits a little higher and can see out our van window better than before. It is heavy, but I don't make a habit of carrying the car seat around...it stays in my van. I can't say enough good things about the Marathon 70!!!!!!

    Comment on this review

     
    4.0

    I would buy this product again

    By busy MN mom

    from St Paul, MN

    About Me First Time Parent

    Verified Buyer

    Pros

    • Comfortable
    • Easy to Adjust
    • Safe
    • Stylish

    Cons

      Best Uses

      • Infants
      • Toddlers

      Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

      We use this product in our Honda accord and fits well.
      Our infant is about 10 months old and we were tired of using the infant car seat and wanted something we could get her in and out easier. I love the safety standards that Britax holds and feel good about putting our infant in this seat.

      Comment on this review

      (1 of 1 customers found this review helpful)

       
      4.0

      Love it

      By Jen

      from Maryland

      About Me Parent of Two or More Children

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Toddlers

        Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

        Love it. Daughter loves it.

        Comment on this review

        (5 of 5 customers found this review helpful)

         
        5.0

        Expensive, but worth it!

        By T's Mom

        from Topeka,KS

        About Me First Time Parent

        Verified Buyer

        Pros

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

        Cons

        • Heavy

        Best Uses

        • Infants
        • Toddlers

        Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

        It was such a debate when we purchased this seat because of the price. I'm very pleased with the conveniences of the seat, they've nearly paid for the seat themselves! Lengthening & loosening straps with the push of a button is a God-send! My little man is still little & rear- facing, but it was obvious from day one (when he fell fast asleep within 5 minutes) that he was going to dig his new seat & he does! It IS heavy (it's made with steel!) but that'll only matter if you plan to move it often. There may be plenty of cheaper seats out there but we are pleased with our choice!!

        Comment on this review

        (0 of 1 customers found this review helpful)

         
        5.0

        I would buy this product again and again

        By new mom

        from washington

        About Me First Time Parent

        See all my reviews

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

              I researched a lot of car seats and thought this was the best.

              Comment on this review

              (7 of 8 customers found this review helpful)

               
              5.0

              Best of the Best Car Seats! None Better!

              By Proud Army Wife and Mommy!

              from Metro-Detroit, MI

              About Me First Time Parent

              Pros

                Cons

                  Best Uses

                    Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

                    This car seat is awesome! It can be used for a 5lb-40lbs rear facing, then I can use it for my child from 20-70lbs forward facing. This is one of the only brands that I researched that will hold a child up to 70lbs. With that being said, Britax has done crash tests using up to 70lbs of force. What I also found in my research, this company also does head on accidents going at faster speeds of impact then any other brands. I also learned that their safe cell tech. in the bottom of the base of this seat will actually compress when you get into an accident, bringing the childs center of gravity lower to the ground instead of throwing them forward or side to side. Another key feature that I love about their seats that really sold my husband and I, is the steel they use as opposed to plastic. When I went into a Babies R Us, the team member explained to me that when car seats sit in your car for years, they go through the seasons of hot and cold and it causes plastic to expand and contract with the heat and severe cold the our "mitten" state goes through. This can cause the plastic to shatter if you get into an accident. I love how the harness system has never tangled on my like my sister-in-law's Safety 1st seat does. I knew that I did my research and was confident in my choice. The woman at the store was very knowledgable on Britax car seat which ensured my husband and I that we where going to be buying the "Jaguar-of-car-seats!"

                    Comment on this review

                    (3 of 3 customers found this review helpful)

                     
                    5.0

                    So far, so good

                    By Practical is my first name

                    from Jacksonville, Fl

                    About Me First Time Parent

                    Verified Buyer

                    Pros

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

                    Cons

                      Best Uses

                        Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

                        I chose this seat for the overwhelming safety reviews, and that it will fit in my 2003 Honda Accord (It actucally fits better than the infant car seat did (Graco 35). You can move the passenger seat back a little further). There was nothing to assemble, just had to fiddle with it and see how to adjust the straps and such. So far my girl likes it, so I am a happy mama! It also has a piece of fabric around the "crotch buckle" which keeps the buckle and straps from laying directly on her legs and leaving marks. The seat is well padded and looks very comfortable.

                        Comment on this review

                         
                        4.0

                        I would buy this product again

                        By JLC

                        from Louisville, KY

                        About Me First Time Parent

                        Verified Buyer

                        Pros

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

                        Cons

                          Best Uses

                          • Infants
                          • Toddlers

                          Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

                          This car seat seems very sturdy and safe. My one year old seems comfortable while in this seat. My only complaint about this seat is that it is difficult to find the button to loosen the straps.

                          Comment on this review

                          (1 of 77 customers found this review helpful)

                           
                          1.0

                          hate this carseat

                          By mom of 3

                          from joliet Il

                          About Me Parent of Two or More Children

                          Pros

                            Cons

                            • Bulky
                            • Difficult To Adjust
                            • Heavy

                            Best Uses

                            • Toddlers

                            Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

                            I simply do not like this seat. There are other seats out there that are just as safe but at a much lower price. Just because someone doesnt buy the most expensive seat doesnt mean they dont care about the safety of their child.

                            Comment on this review

                            (1 of 1 customers found this review helpful)

                             
                            4.0

                            Love my Britax!

                            By Indiana Mom

                            from Indiana

                            About Me First Time Parent

                            Pros

                            • Comfortable
                            • Easy to install
                            • Safe
                            • Sturdy

                            Cons

                              Best Uses

                              • Infants

                              Comments about Britax New Marathon 70 Convertible Car Seat - Onyx:

                              I bought the Britax car seat for my 6 month old. It was a little pricey, but well worth the money!! My little girl absolutely loves her new car seat! She looks like such a big girl sitting in her car seat!! She goes to sleep easily in it and it is very comfortable and roomy for her!!

                              Comment on this review

                              Displaying reviews 1-10

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