SKU: 78253593316
britax marathon newborn

britax marathon newborn Britax Poplar S Convertible Car Seat

Sale price$19.45 Regular price$21.61
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Description

britax marathon newborn Britax Poplar S Convertible Car SeatThe Britax Poplar S Convertible Car Seat is the best space saving convertible car seat for parents seeking advanced crash protection, ClickTight fast installation, and 3 across seating capability in a compact 17 inch profile. This convertible combines advanced safety innovation, superior comfort, and space saving design to make every ride safer and simpler. Built with ClickTight installation technology and ReboundReduce stability bar, this seat

The Britax Poplar® S Convertible Car Seat is the best space-saving convertible car seat for parents seeking advanced crash protection, ClickTight® fast installation, and 3-across seating capability in a compact 17-inch profile. This convertible combines advanced safety innovation, superior comfort, and space-saving design to make every ride safer and simpler. Built with ClickTight® installation technology and ReboundReduce™ stability bar, this seat ensures a secure fit with minimal movement, giving parents confidence with every drive. Designed for long-term use, the Poplar® S transitions seamlessly from rear-facing (up to 50 lbs) to forward-facing (up to 65 lbs) without complicated conversion steps. Compare the Britax Poplar S to the Graco Extend2Fit: both offer extended rear-facing and forward-facing capability with adjustable headrests, but the Poplar S features ClickTight installation (3-step, pinch-thread-click system vs. traditional LATCH), ReboundReduce™ stability bar, SafeCell® crumple technology, patented V-shaped tether with staged-release stitches, naturally flame-retardant SafeWash® fabrics, 14-position no-rethread harness, 6 recline positions, carbon steel frame, 17-inch slim profile for 3-across seating, and 50+ years of Britax heritage. Choose Poplar S if you want premium crash protection, fastest installation, and compact 3-across capability; choose Graco Extend2Fit if you prioritize budget-friendly pricing. Inside, your child enjoys premium comfort with refined inserts, plush padding, and 6 recline positions for a custom fit at every stage of growth.

Inside, your child enjoys premium comfort with refined inserts, plush padding, and 6 recline positions for a custom fit. SafeWash® fabrics, naturally flame-retardant and machine washable, make cleanups effortless while maintaining Britax's commitment to quality and safety. The ClickTight® installation system simplifies setup with just three steps—open, thread and buckle the seat belt, then click it closed—for confident installations every time without confusion or error. The ReboundReduce™ stability bar helps minimize movement in the event of a crash when rear-facing, providing additional protection during the most critical early years. SafeCell® Technology acts as a crumple zone to absorb crash energy and divert it away from your child. The patented V-shaped tether with staged-release stitches helps slow and reduce forward movement during impact. The 5-point safety harness distributes crash forces evenly across your child's body for maximum protection. The carbon steel frame reinforces seat structure for strength and stability across thousands of miles. The 14-position headrest and harness adjust easily as your child grows without rethreading, eliminating annual maintenance hassles. Three premium comfort inserts, including one specifically designed for infants up to 22 lbs, provide plush, tailored support from birth through toddlerhood. The SpaceSaver™ slim 17-inch profile fits 3-across in most vehicles while maintaining interior comfort—a critical consideration for multi-child families. Six recline positions offer optimal comfort and vehicle fit for both rear- and forward-facing modes. Automatically-tensioning harness ensures the restraint is always secure and snug. Clearly labeled belt paths make installation straightforward and error-free for any caregiver. Dual removable, dishwasher-safe cup holders keep drinks within reach while simplifying cleanup. The naturally flame-retardant SafeWash® fabric is durable and safe to machine wash and dry for quick cleanup after spills and accidents.

Britax Poplar® S Convertible Car Seat Features:

  • ReboundReduce™ stability bar: Helps minimize movement in the event of a crash when rear-facing, providing added protection during critical early years

  • ClickTight® installation system: Simple three-step system—open, thread and buckle, click it closed—for confident installs every time without LATCH confusion

  • SafeCell® technology: Acts as a crumple zone to absorb crash energy and divert it away from your child

  • Patented V-shaped tether: Staged-release stitches help slow and reduce forward movement during impact

  • 5-point safety harness: Distributes crash forces evenly for maximum protection across torso and shoulders

  • Carbon steel frame: Reinforces seat structure for strength and stability across extended use

  • Naturally flame-retardant fabrics: SafeWash® materials are free from added FR chemicals for safer comfort

  • SpaceSaver™ slim 17-inch profile: Fits 3-across in most vehicles while maintaining interior comfort for all passengers

  • Refined comfort inserts: Three premium inserts, including one for infants up to 22 lbs, provide plush, tailored support

  • 14-position headrest and harness: Easily adjusts as your child grows without rethreading—annual adjustments simplified

  • Six recline positions: Offers optimal comfort and vehicle fit for both rear-facing and forward-facing modes

  • Automatic tensioner: Ensures the harness is always secure and snug throughout wear

  • Clearly labeled belt paths: Make installation straightforward and error-free for any caregiver

  • Dual removable cup holders: Dishwasher-safe for easy cleaning and convenient drink storage

  • SafeWash® fabric: Durable, naturally flame-retardant, chemical-free material that's safe to machine wash and dry

  • Convertible rear-to-forward transition: Smoothly transitions from rear-facing (up to 50 lbs) to forward-facing (up to 65 lbs) without complicated steps

  • Compact, space-saving design: Ideal for smaller vehicles, multi-seat setups, and families needing 3-across capability

Safety and Protection Features:

  • ClickTight® three-step installation: Industry's fastest installation system reduces setup errors and ensures secure fit every time

  • ReboundReduce™ stability bar: Minimizes crash movement during rear-facing collisions

  • SafeCell® crumple technology: Absorbs and redirects crash energy away from your child

  • V-shaped tether with staged-release stitches: Reduces forward movement during impact crashes

  • Carbon steel reinforced frame: Maintains structural integrity during collisions

  • Energy-absorbing shell: Multiple layers protect head, neck, and torso

  • 5-point harness system: Distributes forces evenly across safety zones

  • Automatic tension harness: Stays secure without manual tightening

Comfort and Convenience:

  • Six recline positions: Custom fit for sleeping newborns to alert toddlers

  • 14-position no-rethread headrest: Grows with child from birth through age 5+ without annual rethreading

  • Three premium comfort inserts: Newborn insert supports infants up to 22 lbs with proper spinal alignment

  • SafeWash® naturally flame-retardant fabric: Machine-washable comfort without added chemicals

  • SpaceSaver™ 17-inch slim profile: Maximizes cabin space while providing full-size interior comfort

  • Dishwasher-safe cup holders: Easy cleanup keeps seat fresh

Why Choose Britax Poplar S?

The Poplar S delivers exceptional value for parents seeking a space-efficient convertible with premium crash protection and installation ease. The ClickTight® system is the fastest installation available—no threading LATCH straps, no confusion about proper tension, just three intuitive steps. The 17-inch slim profile is unmatched in the convertible category, enabling true 3-across seating in vehicles where traditional convertible seats won't fit side-by-side. Combined with 50+ years of Britax safety heritage, advanced protection technologies like ReboundReduce™ and SafeCell®, and naturally flame-retardant SafeWash® fabrics, the Poplar S makes premium safety accessible and practical for modern families.

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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: 78253593316

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alice b
Pawtucket, US
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OMGOSH! I love this purse! It is exactly what I've been searching for. I don't normally carry a purse. Wearing jeans or pants most of the time, I use my pockets: phone, flat wallet, lipstick, keys, and I'm ready to go. Occasionally, however, I wear an outfit where the phone is too bulky, like in a dress pocket, or there are no pockets at all. Not sure how I came to own such clothing, but be that as it may, I've been looking for a purse that would be simple, functional, and cute. I don't like large purses and phone size purses are just too small that even my few items overstuff them. Then I end up clipping the keys on the side which is not very sophisticated looking (more hobo than boho) So the search has been ongoing, until my package arrived today! Yay! This little Iswee purse is PERFECT! It has a clean design with just a few simple elements that give it that polished look. I got the small (6" high & 9" wide) in brown leather. The color is that warm, orangy-brown that I love. The leather is soft but sturdy not supple like a slouch bag but not stiff like a clutch. It is fully lined with interior and exterior, zippered and slide-in pockets. The hardware is a gunmetal color and heavy, seemingly of good quality. The over the shoulder strap can be adjusted with the buckle from 40" to 47" (length includes hardware) and is of a stiffer, belt like leather. (It even smells like leather) I may just order another in a fun color. It's worth every penny.
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Reviewed in the United States on May 27, 2025
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P R
Bozeman, US
★★★★★ 5
Small but holds alot
Color: Large Coffee
Love this bag! Dis a bit of research as I wanted a zipped bag, with outside pockets for my phone and not those inner pockets for holding credit cards. This is perfect for me. Very nicely put together and is a perfect color of brown. I will be using this alot.
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Reviewed in the United States on March 17, 2026
B
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Betty McJunkin
Birmingham, US
★★★★★ 5
Stylish and big enough to hold essentials.
Color: Small-brown
This is the size I like - not too big but not too small. Room for essentials. Well made.
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Reviewed in the United States on February 21, 2026
M
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Maryd523
Birmingham, US
★★★★★ 1
Can’t Open Zipper All the Way!!
Color: Large Coffee, Color: Large Coffee
There is a bizarre piece of metal attached to zipper that prevents the bag from opening all the way. I bought one of these purses last year and it did NOT have this, so the bag opened completely. However, the leather is showing wear so I decided to buy another one, this time in dark brown. When it came, I noticed that the silky satin lining had been replaced by cheap, rough, dull material. I guess that’s okay, even though they raised the price $10. The zipper thing though, no way. I need my purse to be able to open all the way. I sent it back, to be replaced with the exact same item. Just got it today and it still has that metal piece on the zipper!! What the hell?! I included a pic of my old purse showing it zipped all the way open, and the new purse with the zipper stopped about 1.5 inches from the end. I truly don’t understand, but it’s going back again.
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Reviewed in the United States on November 15, 2025
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Stephen
Belleville, US
★★★★★ 4
Very well made
Color: Small-brown
This was very well made but it just did not suit me
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Reviewed in the United States on March 10, 2026

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