SKU: 80287087573
britax marathon model number

britax marathon model number Britax Poplar Convertible Car Seat (Cobalt Onyx)

Sale price$21.51 Regular price$23.90
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Ships within 48 hours · Estimated delivery Oct 11 - Oct 16

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Description

britax marathon model number 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: 80287087573

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4.2 ★★★★★
Based on 18 reviews
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B
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Brandy B
Lowell, US
★★★★★ 5
Great for our puppy
Size: X-Small, Color: Ring Bone
This chew toy has quickly become our puppy’s absolute favorite. She’s just starting to teethe, and keeping her busy and comfortable has definitely been a challenge, but this ring has been a lifesaver. She was interested in it right away and keeps coming back to it on her own, which is a huge win. The chicken flavor seems to really hold her attention, and it gives her something appropriate to chew instead of everything else. It’s the perfect size for a very young puppy and easy for her to hold and gnaw on without getting frustrated. It keeps her occupied, helps soothe her gums, and gives us a much-needed break during those teething moments. If you have a puppy just starting the teething phase and need something safe, durable, and engaging, this is an excellent choice and one I’d happily buy again.
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Reviewed in the United States on February 6, 2026
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Ginger Murdough
Massapequa, US
★★★★★ 5
Nylabone Ring Bone
Size: X-Small, Color: Ring Bone
My dog loves these. She chews them into pieces which helps keep her teeth clean. It is a mess to clean up. She chews and spits out the pieces. She is 6 years old so not a puppy.
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Reviewed in the United States on May 29, 2026
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Michelle Kim
Waukegan, US
★★★★★ 4
Everything a Teething Puppy Could Need — Well-Thought-Out Kit
Size: X-Small, Color: Teething Bone
The Nylabone New Puppy Starter Kit is a solid all-in-one solution for the first few months of puppy ownership. It comes with multiple chew toys and bones designed specifically for teething puppies, and my little one took to them right away. The variety keeps him engaged, and I appreciate that each item is designed to be gentle on developing teeth while still satisfying his urge to chew. What differentiates this kit from other puppy chew sets on Amazon is the thoughtful selection of textures and shapes. It’s clear these toys are designed to stimulate gums, promote healthy chewing habits, and even support dental care. I also like that everything is non-toxic and durable enough to survive a few enthusiastic chews. The only reason I didn’t give 5 stars is that the kit might be a bit small for larger breeds, or for puppies that are particularly aggressive chewers. But for standard small to medium pups, it’s a fantastic starter kit that keeps both puppy and owner happy. ✅ Bottom line: A reliable, well-designed starter kit for teething puppies which is thoughtful, durable, and engaging. Makes a great gift for new puppy owners or a practical addition to your own puppy’s toy collection.
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Reviewed in the United States on September 26, 2025
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Verified Purchase
Valarie Amundsen
Fort Morgan, US
★★★★★ 5
Chew
Size: X-Small, Color: Ring Bone
My dog loves this little chewy bone and it’s good for her teeth. That was very cheap on a sale. It’s worth giving it a try highly recommend it.
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Reviewed in the United States on June 11, 2026
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Verified Purchase
princeton von d
Massapequa, US
★★★★★ 3
Chicken Flavor Good, But 🔄 Rotation-Resistant✖; Best for Simpler Chewers
Size: X-Small, Color: Ring Bone, Size: X-Small, Color: Ring Bone
🐾 Hi, I’m PVD; plush sophisticate, chew critic, and active curator of rotational toy relevance. This ring bone and I never fully bonded. I sampled it maybe five times in my entire puppyhood before quietly returning it to the bin (with a single judgmental glance). Still, it does have value for the right pup. ⭐ Why I originally wanted to love it: ✔️ XS size works well for very young puppies ✔️ Chicken flavor lasts impressively long ✔️ Freezing offers temporary gum relief ✔️ Durable and safe; no odd odors or shredding 🌀 Why it’s now a respectful 3-star chew in my rotation: ✘ Never became a go-to toy (5 uses max in my life) ✘ Ring shape felt awkward, not natural or chic; hard to grip and maneuver ✘ Texture too tame vs. nubs or detailed chew surfaces ✘ When I was smaller, I much preferred the Nylabone Baby Blue Bone Chew Toy with nubs (my personal classic), and have since matured into nightly Nylabone “Nubz” edible bones This Ring Bone is Best For: • Very young puppies with minimal chew preferences • Dogs who like simple textures and circular shapes • Those just starting enrichment chew play • Freezer treat rotations (briefly) 🚫 Not ideal for: picky pups, advanced chewers, or dogs who analyze toy ergonomics (like myself). 📝 Final Re-Barks: A strong, well-made chew, but lacked the intrigue to make my permanent rotation. Works for basic chew enjoyment; not for pups with elevated taste or toy ambition. — PVD (Chew Strategist, Textural Analyst & Aspire-to-Vine Reviewer 🐶💼)
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Reviewed in the United States on September 17, 2025

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