Britax Marathon 70 Car Seat

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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.
• Two Buckle Positions for your growing child.
• Premium Lower LATCH Connectors for a quick and simple installation featuring a push button for easy release.
• Built-in Lock-Offs ensure a snug lap and shoulder belt installation with minimal effort.
• Anti-Slip, Contoured Base grips and protects the vehicle seat while offering optimum vehicle fit.
• Harness Ultra Guard System (HUGS™) provides resistance to forward movement in the event of a crash.
• 70-pound Weight Capacity for safety and comfort as your child grows.
• Plush, Easy-Remove Cover with matching comfort pads and infant body pillow to provide extra comfort and easy cleaning without disassembling or uninstalling the child seat.
• Quick-Adjust Harness repositions the harness shoulder height without disassembling the harness straps.
• Rear and Forward Facing Recline for child comfort and positioning.
• Convenient Harness Holders keep harness straps out of the way when placing your child in the car seat.
• High Density Comfort Foam provides an extra layer of padding to gently cushion your child.
• Certified for Aircraft Travel.
• Made in the USA with global components.

Marathon 70 on Britax site

Specifications

Reviews Summary

What do people say

We own a Britax Marathon that accommodates a child from 5 to 65 pounds, so it was nice to sit the two seats side by side for comparison purposes. The first notable difference is the Marathon 70 is a larger seat. The seat belt lock offs are designed differently (I think they’re more cumbersome than the easy to use lock offs found on the Britax Marathon and Roundabout seats). The harness adjustor strap’s release mechanism works differently. Instead of pressing down, you need to press up. After nearly 9 years of dealing with seats that had easier releases, I found this to be a tad awkward. Harness height adjustment on the Marathon 70 is a snap compared to the seats where you need to rethread the harness. You simply have to squeeze and pull (or push) to adjust the height of the harness straps. The ease of use for this function is on par with the simple adjustment of the back on a Graco TurboBooster. The Marathon 70 also boast some nice little touches that weren’t found on the old Marathon. There is now a place to snap the latch clips to the back of the seat when not in use. Parents who travel frequently and find themselves lugging their child seat through airports will appreciate the added touch of an area to clip the versa tether strap to be used as a carry handle.

Installation of this seat was a snap. I installed it both rear and forward facing in my Toyota Sienna and it was easily and securely installed in both positions. Because the seat is so large, it is possible that this seat may not fit well in smaller cars when used in the rear facing position.
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Since my 3 yr old has been using a britax marathon for 2 years I was confident this would be a good choice for my 1 yr old. Yes, the marathon 70 is big and heavy like the marathon, but it has a few features that made life easier. First, adjusting the shoulder straps is much easier on the 70. It’s a matter of simply squeezing the handle at the top of the seat and sliding it up or down. This is way easier than most seats which require you to take the seat out, turn it over, unstrap the shoulder straps and rethread then through the proper holes. Also, it comes with extra removable padding to accommodate smaller ones. The padding and overall finish are also a bit nicer than the standard marathon.
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Read more Britax Marathon 70 user reviews on Amazon.