The Britax Marathon ClickTight convertible car seat is the solid investment you’ve been looking for. Made to be compatible with many types of vehicles, this car seat is trusted for being easy to use, solid in build quality, and, most importantly, capable of protecting your baby.

Since the US launch of Britax in 1996, the company has delivered products with high quality materials to meet and surpass safety standards. With over 70 years of innovation in child safety technology, they are now offering the Britax Marathon, a convertible car seat that can meet every parent and child’s needs, while being convenient and easy to use.

What Sets Britax Marathon Apart

The Britax Marathon ClickTight convertible car seat combines unparalleled child protection, worry-free ease and installation, as well as flexibility and functionality all-in-one. The build quality also means great durability and strength.

Worry-Free Installation and Use

Research shows that most car seats in the United States aren’t installed correctly. This is a major consideration as badly-installed car seats render even the most sophisticated child protection systems useless. Without the complications and weight, seat and belt limits of latch systems, the Britax Marathon ClickTight convertible car seat makes it easy for you to easily and confidently secure the seat.

What sets Britax Marathon ClickTight apart is the ClickTight Installation feature. While all Britax car seats are designed with ease of use in mind, the ClickTight Convertible Car Seat takes it one step further with this new technology. This is the safest and simplest technology on the market. With just three simple steps, the convertible car seat can be set and installed correctly. Parents only need to release to open the front of the seat, buckle the seat belt across, and click the seat shut.

To ease the installation and adjustment process, the car seat even comes with auto-level indicators. Whether you arrange the car seat to be rear-facing or forward-facing, the indicators can determine if you have adjusted the seat to the proper installation angle.

Over the years, Britax has perfected innovations designed to bring ease of use and convenience. The ClickTight Convertible comes with multiple recline positions, as well as the patented V-shaped Tether. This tether minimizes seat rotation, which is essential to decrease the force of a crash upon impact. Both the ClickTight and patented tether gives parents peace of mind that the car seat is locked on tight.

The 12-position Quick-Adjust Harness (8.35 to 17.7”) and the 2-position buckle (5.25”/7”) can easily adapt to your growing child. Parents don’t need to worry about re-threading and buying a new car seat as quickly as the child grows up. Multiple children of different ages can also use the same car seat with only minor adjustments. The straps are also easy to operate and adjust.

Unparalleled Side Impact Protection
When looking for a convertible car seat, the number one priority of any parent is child protection. From the drawing board to customer reviews, it is clear that the Britax Marathon ClickTight convertible car seat provides different top quality mechanisms to keep your child as safe as possible.

Britax has perfected side impact protection technology that makes use of an energy-absorbing deep foam-lined shell. This shell protects your baby from side impact collisions and rebounds.

The general build of the Britax Marathon also incorporates safety design mechanisms. The integrated steel frame offers both stability and strength. Though it adds to the weight, this steel frame ensures that the car seat is stable through a collision.

The roomy space and generous headroom (with the child standing height limit at 49”) of the Marathon ClickTight also sets the car seat apart. The comfortable space can keep almost all kids seated in the rear-facing position until the weight limit is reached. This is ideal as the rear-facing position of any car seat better protects the child in the event of a collision, compared to the forward-facing position.

The compressible impact-absorbing base, which makes use of SafeCell technology, speedily diverts energy away from your baby during a collision. There are also staged-release stitches that slow down forward movement.
Solid and Trusted Build

The sturdy and sleek design makes this car seat premium quality. Britax is proud to bring a product that is designed, tested and built entirely in the USA. The convertible car seat also addresses the child’s needs, with premium fabric and padding lining the car seat for a comfortable ride.

The Britax Marathon ClickTight convertible car seat comes with an easy-remove cover that guarantees ease in maintenance and cleaning.

Britax Marathon Specs

Unlike many other convertible car seats in the market, Britax Marathon Car Seats are known for having roomy seats and big space, without sacrificing the need for ease-of-use and installation.

The Britax Marathon Convertible Car Seat has a product weight of 28.5lbs, and dimensions of 18.5” W x 23.5” H x 23” D. It also has a seat area depth of 10.5”, width of 11.5”, and shoulder width of 16”. The car seat can comfortably accommodate child weight of 5 to 40lbs when rear-facing, and 20 to 65lbs when forward-facing.

The child standing height has a maximum of 49”. The seated shoulder height ranges from 7.6 to 16.95” when rear-facing, and 12 to 16.95” when forward-facing. The dimensions of the product make it comfortable for a baby to move around and sleep in.

The Britax Marathon is designed to fit many vehicles. This makes it easy for the car seat to fit even smaller cars, without sacrificing your child’s need for space and protection.


If you’re looking for unparalleled child protection, market-leading ease of use, and overall great design, this convertible car seat is the option you are looking for. Many parents who are looking for the same features as you attest to the top quality and build of the Britax Marathon ClickTight convertible car seat, which is why it was ranked #1 Best and Safest Convertible Car Seat in 2017 by Parenting Pod. The car seat was also awarded in Consumer Reports’ 2016 Top-Rated Convertible Car Seats and in the 2017 BabyCenter Mom’s Picks for Best Convertible Car Seats.  

The Britax Marathon promises to be the sturdiest and safest option you can have, with an installation mechanism that is almost too easy to be real. The car seat even comes in fun color options like cowmooflage, vibe, and Ollie. For the perfect blend of trusted child safety technology, ease of use, and child comfort, you can trust Britax’s line of child and family products.