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  • Britax Marathon 70 Convertible Car Seat, Waverly (Prior Model)
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Britax Marathon 70 Convertible Car Seat, Waverly (Prior Model)


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  • 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
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Product Information

Technical Details
Item Weight22.6 pounds
Product Dimensions21 x 18.5 x 26 inches
UPC652182070618
Item model numberE9BB11H
Minimum weight recommendation5 Pounds
Maximum weight recommendation70 Pounds
Batteries requiredNo
  
Additional Information
ASINB005UBCJ94
Best Sellers Rank #65,470 in Baby (See top 100)
Shipping Weight22.6 pounds
ShippingCurrently, item can be shipped only within the U.S.
  
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Product Description

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. The Marathon 70 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. The Marathon 70 also incorporates Britax side impact protection, offers a no-rethread and quick-adjust five-point harness, 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.

Customer Questions & Answers

Customer Reviews

Love the cow pattern too!
Pita
The fact that the strap height can be adjusted without re-threading more than makes up for this inconvenience.
Sara Lamberto
The car seat is very comfortable for my granddaughter and easy to install.
Presley

Most Helpful Customer Reviews

84 of 87 people found the following review helpful By JT on December 16, 2011
Color Name: Cowmooflage Verified Purchase
This thing is the rolls royce of carseats. I seriously regret not getting a Britax for my first child. I thought "How can it be so much better?" In every way its better! It is thick, substantial padding, awesome convenient features. I have a giant 21 lb. 6 month old baby. I searched for a rear-facing car seat with a good recline and I got it. He reclines very comfortably in this. The latch and tether on this are very solid. It also has a feature that makes changing the harness height literally a snap. It takes a second and it is secure. I will never go back to less expensive brands. I have a reputation for being frugal and this is something that is worth the price!
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51 of 58 people found the following review helpful By mamaB on November 16, 2011
Color Name: Cowmooflage Verified Purchase
First of all, watch the video. That should be the main reason why you buy this seat. My husband was very hesitant on spending over 200 dollars on a car seat but once we looked at them in the store and did our research this was the best we could get for our family so we made the purchase. I ordered the seat late Sunday night and it was at my door Weds. morning.....almost unbelievable (I live in NC). It came in the Britax box and was ready to be put in the car once I adjusted everything to my 11 month olds comfort. It is so well made and the latches were another selling point for us. Unlike the Graco and other brands all you do is press a button and pop it on the latch, no pinching and doing crazy wrist movements, pinching fingers, getting AGRAVATED anymore for us!!!! We bought the cow print and couldn't be happier with it (we have two girls but are planning on adding two more children to the family). If you are looking for a car seat that meets your safety needs to a T, A+++++ this car seat is for you. It is one of the bulkier car seats but my children's safety is #1 to me. I know it is an investment and we look forward to many years with our Britax!!! We are awaiting the arrival of the Parkway Britax for our older daughter, we are so excited!!!
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22 of 24 people found the following review helpful By Amber Camille on November 27, 2011
Color Name: Chili Pepper
I read reviews and did my research on just about every convertible Car seat on the market and I was always led back to the Marathon 70. When it arrived and we took it out of the box the color poped, very pretty red. My husband installed it and gave the installation score of a 4 out of 5. Our son doesn't mind getting in his new Carseat and I find it so easy to get him buckled in. There are Velcro patches on the inside of the seat so you can attached the straps, the Velcro prevents your baby from sitting on the straps and you having to dig them out. When we first got the Carseat our son was 10 months 23 lbs and 30" long (he's 11 1/2 months now) and he fits in the 2nd row middle seat (rear facing) like a pea in a pod, just right. We have a Lexus GX 470 (SUV) and a 2011 Hondai Sonata Hybrid the Carseat fits in both cars. We bought one for mommy's car (SUV) and one for Daddy's car.
*****We were side swiped in the Lexus SUV and our son didn't even flinch!
Hope my review helps you in your Carseat purchase.
Amber B. & The Deron's
XOXO
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8 of 8 people found the following review helpful By buyitnow209 on February 26, 2012
Color Name: Azalea Verified Purchase
We LOVE this car seat!My daughter is VERY comfortable in it(33 lbs)It is installed with the latches and is very secure,doesn't even budge when trying to move it around.It is a little more difficult to install than older models(took me about 15 minutes to make sure all straps were tight,etc) but is worth the time and effort.
I noticed a few upgrades vs older models,smaller things that really make a difference.
1.The slide up and down harness adjustments,TOTALLY AWESOME!
2.The little elastic on the belly pad,TOTALLY AWESOME!(the one on our older roundabout fell off constantly and finally got lost.
3.The strap tension tightener is under the cover and in a way that the child can't loosen it and become unsafe.
4.the belt holder for seat belt in the vehicle is kind of odd,couldn't figure it out.
The cover is very nice in azalea,it is more purple tone in person than in the photos online(which I preferred),the insert is an extra added cushion behind the child and my daughter is slightly reclined in the normal position that when she's asleep she looks very cozy.

I have it installed in a 02 ford wind star behind the driver's seat in a bench seat,It fits very well.I am using the latch system and had to remove the headrest.
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8 of 8 people found the following review helpful By Kate on December 27, 2011
Color Name: Waverly Verified Purchase
This is a great car seat. It fits well in my Honda CRV and has a nice, compact design that leaves plenty of room in the back seat. It was pretty easy to install, and I appreciate the added safety features.

As some noted, the crotch strap is a bit short and I am concerned it may present an issue in the future as my son gets older. I also wonder if the narrowness of the car seat, which is currently an asset, will be TOO narrow for my son's shoulders. Time will tell.

In all, I wish I'd shelled out the extra money and gone with this one first. I initially purchased the First Years convertible car seat, but the straps on that one were impossible to use. The Britax Marathon is the right size, has great safety features and is easy to use. I definitely recommend it.
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8 of 8 people found the following review helpful By Big Spender on December 10, 2011
Color Name: Waverly Verified Purchase
I recently ordered 2 Britax Marathon 70 car seats for my twin 14mo olds. The 2 units arrived a couple of days earlier than the expected delievey date. The cost on Amazon was much cheaper than Toys R Us. After I took them out of the box all I had to do was a few, very minor adjustments to the straps and snapped them into my 2008 Dodge Caravan (middle bucket seats)foward facing. Done. They fit great. It was so easy. Prior to these car seats I owned 2 Peg Perego SIP 30/30 (Which were also great seats) but my kids had out grown them. The Britax seats were much easier to setup and install into the van than the Peg Perego seats. We took a test drive with the new seats and my twins fell asleep in them within 20 min. They really enjoyed them. Lots of padding and comfort. Open style so the kids can look outside the van windows, something I feel they really enjoyed. Overall I am very pleased with my purchace. Well worth the money
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Most Recent Customer Reviews