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The legendary Britax Marathon™ convertible car seat is renowned for safety, comfort, and convenience. The Marathon is also one of many Britax products renowned for its ability to keep your child in a harnessed restraint up to 65 pounds.
Marathon Onyx Booster Car Seat
$249.99 - $299.99
pros: heavy and built with high quality products, super safe.
cons: bulky, difficult to clean.
LOVE THIS CARSEAT
I purchased the Marathon Onyx Booster car seat because I was concerned about safety after... See Full Review
pros: I like the fact that his head is protected while he is napping.
cons: It was hard to figure out how to put it back together after washing.
My mother in law suggested that I buy this car seat after someone in her ladies group got it for the... See Full Review
pros: Roomy, classy color
excellent and durable
I love this carseat. Everyone tells me Britax makes the best and they are right! It is so comfy for... See Full Review
pros: High harness weight, installs easily
The workhorse of car seats
~Intended Use~ Rear Facing: 5-35 pounds and 49" or less with a sitting height (butt to shoulde... See Full Review
pros: Easy to use, SAFE, cute
cons: the price was much higher than most of the other seats.
LOVE THIS CAR SEAT!
I bought this seat based on the consumer reports safety rating. I am very happy with it.... See Full Review
pros: Safety, safety, safety! Comfortable and roomy; Installation isn't that hard...
cons: ... but it can be frustrating getting it right; cost is high; big and bulky
Britax Marathon Convertible Car Seat — Back Seat Driving in Complete Comfort
One thing I have learned with a young toddler is how they grow out of things very quickly. This was... See Full Review
pros: Higher weight limits, plush & padded, R/F & F/F, SUPER SAFE & STURDY!
cons: Alittle heavy, NO cup holder or "mesh" pocket!
I bought a Britax Marathon in the "tan micro dot" pattern for my 3yr. old Foster Twins, because we w... See Full Review
pros: Ease of use, safety, comfort
cons: Price, size
When "Good" just isn't enough...
I am infatuated with my son’s Britax car seat. When I worked at Babies R Us (about 6 yea... See Full Review
pros: Very comfortable seat for tall babies/infants Removable cover, padding can all be washed
cons: Expensive Big- takes up lots of space. Must have top tether anchor for FF- not avail always
Great for our peace of mind
Bought this seat with 20% off coupon at BRU to help defray exorbitant cost. We are really glad... See Full Review
pros: The cloth is very plush and my son is always comfortable. Easy to clean.
cons: very large seat in small cars there's not room in the backseat for another seat
When my youngest son turned 9 months old he outgrew his infant carrier. At this point he was n... See Full Review
|Adjustable Harness Height||Adjustable Harness Height|
|Stay-in Car Base||No Detachable Base|
|Restraint System||5-Point Safety Harness|
|Seating Direction||Rear / Forward Facing|
|Weight Limit||65 - 5 lbs.|
|Additional Features||Top Tether Strap|
|Height Limit||18 - 49 In.|
|Recommended For Ages||More than 4 Years|
|Carry handle||No Carry Handle|
|Head Protection||No Headrest|