Britax Marathon Onyx Convertible Car Seat Reviews
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Britax Marathon Onyx Convertible Car Seat

216 ratings (187 Epinions reviews)
Epinions Product Rating: Excellent
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Sep 10, 2009 (Updated Sep 14, 2009)
Review by  
Rated a Very Helpful Review
  • User Rating: Excellent

  • Durability:
  • Ease of Use:

Pros:Higher weight limits, plush & padded, R/F & F/F, SUPER SAFE & STURDY!

Cons:Alittle heavy, NO cup holder or "mesh" pocket!

The Bottom Line: A great carseat for children from0-4yrs.!


I bought a Britax Marathon in the "tan micro dot" pattern for my 3yr. old Foster Twins, because we were having troubles fitting them into "traditional" carseats and they were not quite "mature" enough to ride in "booster" seats.
At just about 40lbs most seats we tried only fit 1 outta the 2 children, partly due to 1 being a tad bit taller than the other.
For the taller child this seat is "just okay" in my opinion....even though she is well under this seats weight limit, she is just under the top (4th) harness position.....therefore she won't get to use this seat at length.
On the other hand her sister fits WONDERFULLY in this seat with being just under the 3rd harness position!
I'm a big fan of Britax, already owning a Husky (although being a MONSTER in size it's great for the taller twin!).
The Marathon features very padded and plush seating/coverings, multiple recline positions, built in lock offs, LATCH system and can be used Rear or Forward facing!
This seat would last you a long time being able to use it from
Infants 5-22+ pounds Rear facing and Toddlers 22-65 pounds Forward facing.
This seat also features velcro harness holders, belly comfort pad, harness shoulder pads, 4 height harness positions, front tighten/loosen harness straps and a "smooth" foot bed, so to protect your cars seat materials!
I've also used this seat R/F for my 4mo. old granddaughter and she absolutely LOVE it!!....it was fairly easy to uninstall/install in the R/F position from the F/F position and the harness straps were fairly easy to adjust too!
I've had no problem installing/uninstalling this seat with the LATCH into our '07 dodge grand caravan bucket seats, I simply reclined my cars seat, LATCHED it in, pulled the straps and re inclined the cars seat for a TIGHT fit!.....Oh and I like the LATCH on Britax seats too, because they have "push buttons" and not just "clamps"....SOOOO EASY!!!
All seat fabrics and belts are easily taken off and machine washable!
THe only downfall I see in this seat is there is NO cup holder or "mesh" toy pocket, which makes it a bit of a hassle on longer trips!


Recommend this product? Yes


Amount Paid (US$): 189
Age Range of Child: Other

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