Staying power. That is what you get with the Britax Marathon Convertible child seat. This convertible seat can be used from the time you bring your baby home from the hospital until the little guy or girl weighs up to 65lbs; All the while keeping your baby safe and comfortable with Britax’s state-of-the-art design. That makes the Britax Marathon convertible seat one of the most functional car seats on the market!

There is a price that comes with the benefits of a car seat that lasts you this long while maintaining such a high safety and comfort rating however. The cost comes in size. The Britax Marathon is a bit bulkier than most models. In fact, when using this as a rear facing seat (when your baby is 5-20lbs), it is recommended you allow for 31 inches of back seat space in order to be able to get the seat in and out of the car properly. If you own a compact car, you may need something smaller than the Marathon.

The Britax Marathon convertible seat is specially designed to grow with your child. The four point adjustable should straps are simple to change, the LATCH buckles are easy to install, and the floating HUGS System is designed to automatically distribute webbing placement to reduce head movement and the possibility of injury as well as reducing irritation from the harness.

Recommended Use for the Britax Marathon Convertible car seat is both rear and front-facing. When rear-facing, it is recommended to allow for 31 inches of back seat space.

Specifications:

Product weight 17.5 lbs.
Seat Base / Foot Width 19.5"
Seat height 28"
Interior seat width 11"
Interior seat back height 22.5"
Bottom to lowest harness slot 10"
Bottom to highest harness slot 17.5"