Search  for anything...
BRITAX

Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Onyx

    • Based on 395 reviews
Condition: New
Checking for product changes
$349.99 Why this price?
Save $50.00 was $399.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

90-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Apr 8
Order within 6 hours and 46 minutes
Available payment plans shown during checkout

Color: Onyx


Style: Poplar S


Features

  • 2-in-1 Convertible Car Seat: The Britax Poplar S fits up to 50 lbs when installed rear-facing while easily switching to forward-facing as your child grows
  • Install with Confidence Every Time: With ClickTight technology, theres no guessing or stressing. Fully open seat belt paths are clearly labeled and easy to access; open, thread and buckle and click it closed
  • ReboundReduce Stability Bar: Carbon steel bar easily attaches to the car seat when installed rear-facing to minimize movement in the event of a crash; must be removed when installed forward-facing
  • Refined Comfort, Tailored Fit: This Britax car seat features premium inserts and padding to create an elevated fit and feel
  • SpaceSaver Design: Slim 17" seat is designed to fit 3-across* without compromising on trusted Britax safety and premium comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles
  • Room to Grow: 14-position no-rethread harness and headrest adjust together easily to help create the perfect fit
  • Britax Safety: The carbon steel frame and SafeCell crumple zone help absorb crash energy, and a patented V-shaped tether helps slow forward movement
  • Flip-Forward Buckle Pad: Stays out of the way for easy boarding in the toddler car seat
  • Naturally Flame-Retardant: The car seat cover is made of naturally flame-retardant fabric with no added FR chemicals
  • Simple Cleaning: The rear-facing car seat features a washer and dryer-friendly cover and 2 dishwasher-safe cup holders

Description

Ready to go with room to grow! The Britax Poplar™ S 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 convertible car seat accommodates up to 50 lbs when installed rear-facing, allowing your child to ride rear-facing longer. It easily switches to a forward-facing car seat as your child grows, accommodating up to 65 lbs. ClickTight technology provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. The baby car seat lets you easily adjust the 14-position no-rethread harness and headrest to help create the perfect fit, and the removable infant insert provides extra comfort on the go. The car seat features 17-inch SpaceSaver technology designed to fit 3-across without compromising on Britax safety and premium comfort. The car seat boasts a patented SafeCell® crumple zone and V-shaped top tether to help manage crash energy. Carbon steel frame and belt paths provide strength and stability. Car seat cover fabrics are naturally flame-retardant with no added FR chemicals, and they’re safe to machine wash and dry time and again. Britax cannot guarantee 3-across installation fitment in all vehicles

Brand: BRITAX


Installation Type: Seat Belt


Material: Alloy Steel


Color: Onyx


Orientation: Rear and Forward Facing


Product Dimensions: ‎20.5 x 17 x 23.5 inches


Item model number: ‎E1C943S


Minimum weight recommendation: ‎5 Pounds


Maximum weight recommendation: ‎65 Pounds


Maximum height recommendation: ‎49 Inches


Material Type: ‎Alloy Steel


Material Composition: ‎plastic, steel, polyester


Care instructions: ‎machine wash cold, delicate cycle, mild soap


Style: ‎Poplar S


Number of reclining positions: ‎14


Batteries required: ‎No


Orientation: ‎Rear and Forward Facing


Rear-facing minimum child weight: ‎5 Pounds


Rear-facing maximum child weight: ‎50 Pounds


Forward-facing minimum child weight: ‎22 Pounds


Forward-facing maximum child weight: ‎65 Pounds


Harness type: ‎5-Point


Item Weight: ‎27.2 pounds


Country/Region of origin: ‎USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 8

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Love it so far
Color: Arctic Onyx Style: Poplar S
I will say that installing this car seat at first was a bit difficult and confusing for me, but I watch Britax’s video tutorials on youtube which helped. Now that I’ve uninstalled and reinstalled it a few times, I find it very easy. I love the click tight under the seat, it works great. The car seat is so secure and doesn’t move an inch. I find the adjustments very easy to use as well. It is very cute, and fits decently in my compact sedan (Chevy Cruze). It seems pretty comfy too. I, thankfully, can’t actually attest to the safety of this car seat, but Britax is highly rated in that department from what I’ve read. And I did a lot of reading before making my purchase. Overall, I really do like this car seat and recommend it. First time installation was difficult, but once you figure it out it is much easier. 👍🏻 ... show more
Reviewed in the United States on January 15, 2025 by J
    • Perfect car seat
Color: Arctic Onyx Style: Poplar S
We love this car seat! Our other seat is a Nuna, and this is on par for quality and comfort. It doesnt take up much space and is absolutely the easiest baby to install. Great for travel because of the ease of install if you have a cart for transport through the airport… will travel with this over our lightweight travel seat any day! ... show more
Reviewed in the United States on December 4, 2024 by AEIS
    • Great for small backseat
Color: Stone Onyx Style: Poplar
I absolutely love the size of this car seat. I have britax one4life and that seat is massive compared to this. I first used this seat for my 6 month old at the time but I felt that it did not recline as much as I would have liked so I gave my 3 year old the poplar and gave the 6 month old the one4life. Now that my toddler uses the seat it is easier for her to get into the car since we're able to remove one of the cup holders. She is forward facing and the install is extremely quick and easy since it has the click tight technology. We will forever be a Britax family because of how easy the car seats are to install. Takes maybe a couple of minutes to get done. Unlike most other brands of car seats the padding on this seat is very comfortable and I don't feel like my toddler is sitting on a hard piece of plastic. The padding is also very easy to remove and wash and then reattach. I would highly recommend this car seat for anyone that wants a safe comfortable slim style car seat that you can use rear or forward facing. ... show more
Reviewed in the United States on January 14, 2025 by Luis birruete
    • Great car seat!
Color: Glacier Graphite Style: Poplar
The best slim fit car seat there is. Easy install with multiple recline levels. The seat itself is fairly light in comparison to others we have used. Love that the seat belt gets locked into place underneath where your kid sits. Material is nice and easy to clean if needed. Manual is easy to read and helpful with install instructions ... show more
Reviewed in the United States on February 5, 2025 by KATY M. DAWE
    • Fixed the problems with the Boulevard! Great car seat!
Color: Glacier Graphite Style: Poplar S
We have the Boulevard and loved the installation. This car seat is the same click tight mechanism and is super easy to install. The main complaint with the Boulevard was the location of the harness release. The Poplar harness release is a bit of a maze to find initially but is in a much easier to reach location. The seat fabric feels soft and there is plenty of padding for smaller babies. Overall, this car seat is built great and is very comfortable for our child! We've bought multiple for our multiple vehicles. ... show more
Reviewed in the United States on January 13, 2025 by Patrick
    • Definitely a nice care seat but very heavy
Color: Stone Onyx Style: Poplar
Overall we have enjoyed the car seat. We have had it just under a month now. We wanted a car seat that could accomplish 3 things. 1. Extended rear facing option 2. Easy to install 3. Easy to adjust straps This car seat does fulfill these options for us. It has the highest available limits for rear facing. It uses clicktight technology so you aren’t trying to pull a ton to get a tight install. It also does not require rethreading the straps to adjust the level. These are the pros for us. The biggest two cons are that the car seat is very very heavy and the fabric part is difficult to get on and off. 1. The car seat is so heavy that it exceeds the lower anchor limits around 35lbs (check the manual for exact limit). This requires you to install with the seatbelt which is not much more difficult because of the clicktight technology but the latch system is so easy. We also were hoping to have a car seat that was easier to install so that it would be easy to switch the seat over to a different vehicle. Unfortunately because it is so so heavy, it is not convenient to do so. 2. Our first convertible carseat only had two fabric pieces to take off when cleaning was required. They were also easy to put back on. This has several pieces and lots of little loops and parts that you have to carefully retuck the fabric. That’s fine but I was not expecting it. We had to wash the cover fairly soon after installing the car seat since our toddler had a bathroom accident. TLDR: We are glad to find a car seat that worked for extended rear facing and that is easy to install and use. We were surprised by how heavy it was and the time it took to put the fabric back on the seat after cleaning. ... show more
Reviewed in the United States on June 29, 2024 by Grace
    • Best quality car seat for an affordable price!
Color: Stone Onyx Style: Poplar
I am impressed at the quality of the car seat. It is definitely heavier (sturdier) so you won’t be lugging it around but it is by far the best car seat around. The shoulder pads and the buckle pad are thick. It is very easy to tighten and loosen. Baby fits in it perfectly. The install is SUPERIOR to any other car seat. I feel confident knowing that the car seat will protect baby in case anything happens. I will never buy a different brand of car seat again. I know there are a few that convert into booster seats but I don’t think it is worth sacrificing the safety that is needed when they’re younger. Booster seats are inexpensive. I’d rather purchase this one that fits and protects nicely in the first few years of life, and then later on purchase a booster. I love that baby is able to rear face longer as well. There is a level on it too so you know when you have the car seat reclined just right. ... show more
Reviewed in the United States on January 19, 2025 by Rose

Can't find a product?

Find it on Amazon first, then paste the link below.