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Description:
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
$204.99 - $337.11
Product Reviews
pros: Roomy, classy color
cons: none
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
cons: cost
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!
YAY!!
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
SAFETY FIRST
When my youngest son turned 9 months old he outgrew his infant carrier. At this point he was n... See Full Review
pros: Easy to install. Daughter is comfortable.
cons: Tether doesn't work with our car.
Britax doesn't let you down.
When looking at car seats, we had narrowed our choices to the Britax Marathon and the Britax Bouleva... See Full Review
pros: Safety Installation Comfort Weight Limit Price
cons: None
Big fans of Britax!
We just ordered another Britax Car Seat. I originally bought the Britax Roundabout for my daug... See Full Review
Product Details
| Product MPN | |
| MPN | E9L0669 |
| Key Features | |
| 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. |
| Type | Booster |
| Recommended For Ages | More than 4 Years |
| Other Features | |
| Carry handle | No Carry Handle |
| Head Protection | No Headrest |
| Brand | Britax Römer |
| Miscellaneous | |
| Product ID | 28765004 |
| UPC | 652182052492 |





