Britax Marathon Review
Overview of the Britax Marathon 70
The Britax Marathon 70 is a very versatile Convertible Car Seat with all the quality and features you’d hope to find from a manufacturer as good as Britax. The Britax Marathon can initially be installed as a rear-facing car seat for children weighing from 5 to 40 pounds, and as a forward-facing seat children from the age of one and 20 pounds will be comfortably seated until they weigh up to 70 pounds. The seat can be reclined in both the rear and forward-facing positions. Like the excellent Britax Frontier the Marathon 70 has a tangle free five-point harness with ten harness height positions that can be easily adjusted without the need to disassemble the harness. The materials used are very durable and the cover set is excellent, and easy to remove for cleaning without having to remove the seat from the car.
The Britax Marathon is on sale through this link here
Safety Features of the Marathon 70
Britax are known for first class safety features and the Marathon 70 has everything you need to be confident your child is safe and protected. The Marathon uses Britax SafeCell Technology, a series of SafeCells in the base of the car seat that are designed to compress and reduce impact if the car is involved in a collision. Along with the Versa-Tether system found on the Frontier, and Side Impact Protection with deep side walls and energy absorbing foam, the combined safety features reduce the movement and possible impact on your child and achieve the Britax 360 degree protection.
Other Features
The Marathon 70 has been thoughtfully designed for ease of use and to be simple to install. With lower latch connectors for speedy and tight installation, and a push button system to make it easy to uninstall the connectors. The quick-adjust harness makes it a breeze to reposition without the need to unthread the straps, and there are holders to keep the harness out of the way whilst you are lowering your child into the seat. Quick-adjust head restraint and multiple recline options help with finding a comfortable position.
The Britax Marathon is available On Sale at Amazon through this link
Let’s see the Britax Marathon 70 features again
- Can be installed as a rear-facing or front-facing seat.
- Accommodates children from the age of one from 5 to 40 pounds rear facing.
- Accommodates children from 20 to 70 pounds in weight front facing.
- Quick-adjust tangle free five-point harness with 10, harness height positions.
- SafeCell Technology
- Versa-Tether and Side Impact Protection
- Integrated steel bars
- Multiple, recline positions in forward and rear-facing positions.
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If you are looking for a well designed Booster Car Seat that is simple to install and has lots of features to make life easy then this could be the seat for you. It’s got all the quality expected from Britax and is packed with industry leading safety features. The Britax Marathon 70 Convertible Car Seat is top quality, durable, and available in six stylish designs. Highly recommended.
Lets see what current owners are saying about the Marathon 70
By K Stewart
The legendary Britax quality continues with a solid, intuitive build. Some of the newer head protecting technology from other, more expensive Britax seats has been integrated. The new harness adjuster is amazing, making it so simple and easy to change the height of the straps. We often carpool and I’m glad I can quickly and easily customize the seat to every child.
Britax seats are always soft and comfortable for riders, so much so that my children notice the difference when they ride in other seats! My four year old gave this her seal of approval comfort-wise, declaring the new design even better than her old one.
This review has been paraphrased for size, view the original here.
I hope you have found this review of the Britax Marathon helpful.


