SKU: 46561270385
britax marathon safecell car seat

britax marathon safecell car seat Britax Poplar Convertible Car Seat (Cobalt Onyx)

Sale price$21.11 Regular price$23.45
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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For Your Every Summer RSVP, with Code: SUMMER15

Description

britax marathon safecell car seat Britax Poplar Convertible Car Seat (Cobalt Onyx)This item is an open box model and includes full manufacturer warranty. Purchase online for store pickup, we cannot ship these If you need to come in and test this model out as well as others in our showroom, be sure to book a consultation through our website. Ready to go with room to grow! The Britax Poplar Convertible Car Seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight Installation and slim SpaceSaver

This item is an open box model and includes full manufacturer warranty.

Purchase online for store pickup, we cannot ship these

If you need to come in and test this model out as well as others in our showroom, be sure to book a consultation through our website.

Ready to go with room to grow! The Britax Poplar Convertible Car Seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight® Installation and slim SpaceSaver™ design. This car seat accommodates up to 50 pounds rear facing to help keep your child riding safely even longer and easily switches to a forward facing car seat as your child grows. ClickTight Technology installation provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. Slim outside and spacious inside, the toddler car seat features 17" SpaceSaver technology designed to fit 3-across* without compromising on trusted Britax safety and premium comfort. The Britax car seat boasts a patented SafeCell® crumple zone and V-shaped top tether to help manage crash energy. The reinforced frame and belt paths provide strength and stability. Rear facing car seat cover fabrics are naturally flame retardant with no added FR chemicals and safe to machine wash and dry. *Britax cannot guarantee 3-across installation fitment in all vehicles

  • CONVERTIBLE DESIGN: Works as a rear facing car seat with the infant insert, rear facing and converts to a forward facing car seat
  • CLICKTIGHT INSTALLATION: With ClickTight, you know it’s right in just 3 easy steps: open, buckle and close 
  • INFANT INSERT: Specifically designed to fit newborns 22 lbs and under 
  • 5-POINT SAFETY HARNESS: Helps evenly distribute crash energy to keep your child safe
  • CONVENIENT BUCKLE: Fully open seat belt paths are clearly labeled and easy to access, while the automatic tensioner takes care of the tightening
  • PATENTED V-SHAPED TOP TETHER: Has 2 connection points to help slow and reduce forward movement in a crash; easily stores away when not in use
  • FLAME RETARDANT: The fabric is naturally flame retardant with no added FR chemicals
  • SAFECELL® TECHNOLOGY: Acts as a crumple zone, helping to keep crash energy away from your child 
  • ADJUSTABLE HARNESS: The 14-position harness and headrest move with one hand to grow with your child 
  • 5-POINT SAFETY HARNESS: Helps evenly distribute crash energy to keep your child safe
  • WASHER AND DRYER-FRIENDLY: No more hand washing or waiting for the cover to air-dry; just quick and easy cleanup, so you can keep moving
  • DISHWASHER-SAFE CUP HOLDERS: The 2 cup holders slide in-and-out for easy cleaning between rides
  • EASY-READ LEVEL INDICATORS: The 6-position and quick-adjust recline help you find the most comfortable fit for your child and the best fit for your vehicle

Specifications

  • Product Dimensions: 20.5"L x 17"W x 23.5"H
  • Harness Slot Heights: 8", 8.7", 9.4", 10.1", 10.8", 11.5", 12.2", 12.9", 13.6", 14.3", 15", 15.7", 16.4", 17"
  • Buckle Strap Depths: 4" - 7"
  • Child Weight: 5-65 lbs
  • Rear-facing Harnessed Height: Less than 49"
  • Forward-facing Harnessed Height: Less than 49"
  • Rear-facing Harnessed Weight: 5-50 lbs
  • Forward-facing Harnessed Weight: 30-65 lbs
  • Seat Area Depth/Width: 11" / 12"
  • Shoulder Width: 14"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46561270385

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4.1 ★★★★★
Based on 22 reviews
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Wanda W.
Carnegie, US
★★★★★ 5
Perfect Fit and Great Quality!
Color: Light Royal Blue, Size: 16, Color: Light Royal Blue, Size: 16
I bought this suit set for my grandson, and it exceeded all expectations. The fit was absolutely perfect—true to size and very flattering. The material feels high-quality and well-made, with attention to detail in the stitching and finish. He looked so sharp and felt comfortable wearing it, which made the occasion even more special. Highly recommend this set for any formal event!
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Reviewed in the United States on October 29, 2025
N
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Nati
Boise, US
★★★★★ 5
Great value
This suit was the cutest for my son’s graduation. He is slim enough to fit a 5 but tall enough for a 6. I did get size 5, it fit good, except the vest was a bit on the smaller side. Luckily my boy is skinny. The quality is great. Definitely get your moneys worth. The only con I have is that this item was definitely worn before & likely returned to Amazon. The shirt was wrinkled and not packaged like a “new item”. It was in a regular plastic. You can see in the photo the wrinkles on the shirt sleeves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2025
N
Verified Purchase
naomie
Massapequa, US
★★★★★ 4
Nice suit
This 5 piece set is really nice Pros: fits true to sz which allows it to sit nicely The pants have adjustable waist bands The color is as described Material/fabric is not that great but will do (select a neutral color which can prevent it from looking cheap) Perfect for a growing boy who will need another one soon Cons: The tie is little short and is a non adjustable elastic the handkerchief/pocket square does not fit in the faux pocket. If you want an elevated look - wear with a different tie, thicker fabric white shirt and nice shoes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
J
Verified Purchase
Jeremy Harsa
Bozeman, US
★★★★★ 5
Order a sewing machine too
Color: Light Champagne, Size: 14, Color: Light Champagne, Size: 14
This suit had me questioning whether the manufacturer had ever actually seen a human child before. The pants were SO long — like they were tailored for a 9-year-old with 100 feet of shin. 😂 I had to hem them significantly just to make them wearable for a normal boy. The bow tie was also a letdown. Ours may have arrived defective, but it only seemed to have one hook with nowhere for it to actually attach, so we ended up improvising with the fabric loop. Not exactly the polished wedding-ready moment I was hoping for. The shirt was probably the highlight. It has a subtle textured pattern that makes it feel a little more unique than a standard dress shirt, which I appreciated. Unfortunately, the fabric itself is stiff and not particularly comfortable. Overall, the whole set feels pretty cheap quality-wise. BUT… he’s 9. He’ll outgrow it before the next wedding invitation hits the mailbox anyway. 😂 For one day of looking like a dashing young gentleman instead of a tiny tornado in sweatpants, it got the job done. Just definitely not something I’d recommend for peak summer wedding season unless your child enjoys marinating in polyester.
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Reviewed in the United States on May 15, 2026
L
Verified Purchase
Laila
Bozeman, US
★★★★★ 5
Loved it
Color: Deep Gray, Size: 10, Color: Deep Gray, Size: 10
Pretty good fit on my son. I'd say it's true to size. He looked great for his guitar recital.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026

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