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Britax Marathon G4 Convertible Car Seat, Onyx (Prior Model)

4.5 out of 5 stars 406 customer reviews

There is a newer version of this item:


About the product
  • Base with safecell technology features safecells designed to compress in a crash
  • Harness ultra guard system provides resistance to forward movement in the event of a crash
  • Side impact protection comprised of deep side walls lined with energy absorbing EPP foam distributes crash forces
  • Tangle free, five point harness distributes crash forces across the strongest parts of the body
  • Premium lower latch connectors for a quick and simple installation featuring a push button for easy release
  • Base with 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
  • Harness ultra guard system (HUGS) provides resistance to forward movement in the event of 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
  • Tangle free, five point harness distributes crash forces across the strongest parts of the body and provides a secure fit
  • Premium lower latch connectors for a quick and simple installation featuring a push button for easy release
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From the manufacturer

Choose Only The Best in Safety For Your Child
Britax Marathon Convertible Car Seat

Packed with comfort and safety features, the Britax Marathon convertible car seat is constructed to provide head safety through the use of Britax SafeCell Technology in the base, integrated steel bars, and energy absorbing Versa-Tether that work together to minimize head excursion and reduce the risk of head injury during a frontal impact. It offers a no-rethread and quick-adjust five-point harness and EZ-Buckle system for convenience when harnessing your child, and an easy-remove cover for quick clean-ups that also allows access to the belt paths from the front of the seat. The Marathon accommodates children rear facing from 5 to 40 pounds and forward facing from 20 to 65 pounds.

Choose Only The Best in Safety For Your Child – BRITAX Offers Head Safety Technologies For Advanced Protection

During a car crash, impacts with the front seat aren’t just dangerous – they can be deadly. BRITAX convertible car seats lower your child’s center of gravity to keep them safe, secure and away from front seat. The base of the Marathon includes SafeCell Technology comprised of SafeCells, an engineered material designed to compress in a crash. This compression lowers the center of gravity to counteract forward rotation of the seat, helping to minimize the risk of head injury during a collision. Located in the sides of the seat shell, integrated steel bars strengthen the connection to the vehicle and prevent forward flexing of the seat during a crash to reduce the risk of head injury. In the event of a sudden stop, the Energy-Absorbing Versa-Tether strap restricts forward movement and reduces crash forces with patented staged-release webbing and a two-point attachment. This webbing securely anchors the top of your child seat to your vehicle in either rear- or forward-facing positions.

No-Rethread Harness System and Comfort Features

The tangle-free, five-point harness allows for multiple height positions and can be adjusted without dismantling the harness or removing the car seat from the vehicle. Two buckle positions provide a snug, comfortable fit as your child grows. The seat's harness holders prevent the straps from getting in the way when you're putting your child in the seat, while the EZ-Buckle system maintains the harness buckle in a forward position to prevent your child from sitting on it when first entering the seat. Rear- and forward-facing recline options, as well as high-density foam cushioning, help your child relax on the journey. And the plush cover comes with matching comfort pads and an infant positioning pillow to keep children of all ages comfortable and secure. Product Information: The Britax Marathon is assembled in the USA and has a seven-year life. What's in the Box: Britax Marathon Convertible Car Seat, removable cover, comfort pads, infant positioning pillow, and user guide.

Base with SafeCell Technology

The seat is 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.

Side Impact Protection System Diverts Crash Forces

The Britax Side Impact Protection system includes a rigid shell with deep side walls lined with energy-absorbing EPP foam to contain your child’s head and body and divert crash force energy while creating a barrier against possible intruding objects. This system also protects your child’s head and chest.

User-Friendly Features for Easy Installation

The Marathon takes the guesswork out of installing your car seat thanks to a range of convenience features. An anti-slip, contoured base grips and protects the vehicle seat. Premium lower Latch connectors make for a quick, simple, and tight installation, while the push-button allows you to easily uninstall the car seat. And easy-to-access, built-in lock-offs provide a secure installation when using the vehicle lap and shoulder belt.

Premium Latch Installation

Provides an audible click and an easy-pull strap to simplify installation as well as a push-button design for easy removal.

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.

Product description

Color:Onyx

About Britax

At Britax, we believe family life should be lived without limit. A world where parents and children are free to make the most of every moment together. And we think it's our responsibility to make this happen. By driving safety standards to ensure children have never been better protected on the move. By pushing boundaries in smart design to make life in motion run smoothly. By extending a helping hand – or two – and always celebrating the journey.

We've been leading the way in child safety technology for more than 70 years. Always innovating, always focusing on what's best for the child, always going beyond 'good enough'. From Europe's best-selling car seat brand, we've become one of the brands most trusted by American families since we launched here in 1996.

Since then, we've revolutionized side impact protection, transformed safe seat installation, and introduced a range of smart strollers designed around the changing needs of today's families.

Our ongoing, open-ended conversation with parents is complemented by our work with car manufacturers, government bodies, and child passenger safety experts – collaborating, advising and using our industry-leading testing facilities to continually find ways to give parents the products and the reassurance to live family life without limit.

Because we believe in helping every parent and every child find their family freedom.

Britax. Be free.


Product information

Color: Onyx
Technical Details
Item Weight19.5 pounds
Product Dimensions21 x 18.5 x 26 inches
UPC652182711504
Item model numberE9LQ91A
Target genderUnisex
Minimum weight recommendation5 Pounds
Maximum weight recommendation65 Pounds
Material TypeLead Free
material_compositionLead Free
Additional product featuresRemovable Seat Cushion
Number of items1
Batteries requiredNo
  
Additional Information
ASINB00G34TIDW
Customer Reviews 4.5 out of 5 stars 406 customer reviews
Best Sellers Rank #48,792 in Baby (See top 100)
Shipping Weight22.2 pounds
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
  
Warranty & Support

Product Warranty: For warranty information about this product, please click here
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Customer reviews

Top customer reviews

VINE VOICEon January 16, 2014
Color: Onyx|Vine Customer Review of Free Product( What's this? )
1515 comments| 790 people found this helpful. Was this review helpful to you?YesNoReport abuse
on May 28, 2014
Color: Onyx|Verified Purchase
11 comment| 260 people found this helpful. Was this review helpful to you?YesNoReport abuse
on May 23, 2015
Color: Onyx|Verified Purchase
0Comment| 5 people found this helpful. Was this review helpful to you?YesNoReport abuse
on February 27, 2014
Color: Onyx|Verified Purchase
0Comment| 53 people found this helpful. Was this review helpful to you?YesNoReport abuse
Color: Green|Verified Purchase
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VINE VOICEon September 11, 2016
Color: Onyx|Verified Purchase
0Comment|Was this review helpful to you?YesNoReport abuse

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