Search  for anything...
Britax

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

  • Based on 536 reviews
Condition: New
Checking for the best price...
$349.99 Why this price?

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

This item is eligible for return within 30 days of receipt

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 Saturday, Aug 23
Order within 8 hours and 30 minutes
Available payment plans shown during checkout

Recently Viewed

Color: Cobalt Onyx


Style: Poplar


Features

  • 2-in-1 Convertible Car Seat: Fits rear-facing up to 50-lbs to help keep your child riding safely even longer; Easily switches to forward-facing
  • Install with Confidence, Every Time: With ClickTight theres no guessing or stressing! Fully open seat belt paths are clearly labeled and easy to access; Automatic tensioner takes care of the tightening
  • SpaceSaver Design: Slim outside, spacious inside! 17 seat is designed to fit 3-across* without compromising on trusted Britax safety & premium comfort *Britax cannot guarantee 3-across installation fitment in all vehicles.
  • Room to Grow: 14-position quick-adjust headrest and harness create the perfect fit
  • Trusted Britax Safety: Carbon steel frame & belt paths, patented V-shaped tether, patented SafeCell crumple zone
  • Naturally Flame-Retardant Fabrics with no added FR chemicals
  • Quick, Easy Cleanup: Washer & dryer friendly cover and dishwasher-safe cup holders

Description

Ready to go with room to grow! Poplar takes the stress out of moving to the next car seat stage with trusted Britax safety, patented ClickTight® Installation, and a slim SpaceSaver™ design. Fits rear-facing up to 50-lbs to help keep your child riding safely even longer. Easily switches to forward- facing. Install with confidence every time thanks to Britax-exclusive ClickTight. Fully open seat belt paths are clearly labeled & easy to access, and the automatic tensioner takes care of the tightening. Easily adjust the 14-position harness & headrest with one hand to create your child’s perfect fit. Slim outside, spacious inside! 17” seat design fits 3-across without compromising on trusted Britax safety & premium comfort. Our patented SafeCell crumple zone & V-shaped top tether help manage crash energy. Carbon steel reinforced frame & belt paths provide strength and stability. 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.

Brand: Britax


Installation Type: Seat Belt


Material: Plastic


Color: Cobalt Onyx


Orientation: Rear and Forward Facing


Product Dimensions: ‎20.5 x 17 x 23.5 inches


Item model number: ‎E1C933R


Minimum weight recommendation: ‎5 Pounds


Maximum weight recommendation: ‎65 Pounds


Maximum height recommendation: ‎49 Inches


Material Type: ‎Plastic


Material Composition: ‎plastic, steel, polyester


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


Style: ‎Poplar


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: ‎China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 23

Yes, absolutely! You may return this product for a full refund within 30 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

    • I love this car seat.
This car seat is SOOOO easy to install and move around? only takes like 2 minutes or less! The quality is very luxurious feeling and looks adorable with the cow print. I feel at ease knowing my baby is in a safe and comfortable seat. Great seat at a great price!
Reviewed in the United States on June 3, 2025 by Ashley Previch
    • Britax fan for life
Color: Glacier Graphite Style: Poplar S
I spent a lot of time trying to find the perfect car seat and settled on this. I could not be happier with this seat. It was a little more than I wanted to spend, but definitely a good value for the money. The seat is very well made, very safe and very easy to install. The entire cover can be machine washed AND dried which is huge. It also seems super comfy and well padded. My baby seems much more comfortable in this than in the infant carrier. Very well designed and intuitive to use. I would buy another in a heartbeat ... show more
Reviewed in the United States on May 27, 2025 by Nicole C
    • 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
    • Happy Toddler, happy siblings and great road trip+
Color: Sand Onyx Style: Poplar S
Review Image by Mrs. Priss Munoz Mrs. Priss Munoz
The media could not be loaded. We love britax! This was the best choice for our toddler. We are a sports family who is always on the road. And we travel 12+ hrs to a destination. Its built with all steel framing that is what we were looking for and this is what we got. It is super easy to install and adjust. The safety is the best when it comes to britax. Functionality is great. It looks and feels nice. My baby is a sweater and there are no stains we've had this for 5 months. Cleaning is simple or a simple youtube short. Best bang for your buck. The best! ... show more
Reviewed in the United States on April 23, 2025 by Mrs. Priss Munoz Mrs. Priss Munoz
    • 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
    • Great quality, just 1 minor flaw
Color: Arctic Onyx Style: Poplar S
We’ve been using the Britax Poplar S for a little while now, and overall, it’s a fantastic car seat! The materials feel high-quality, and the steel-reinforced frame gives me confidence in its safety. I’ve seen a lot of reviews complaining about the weight, but honestly, that’s to be expected—it has a steel base for added protection! If you want a lightweight car seat, you’ll likely be sacrificing durability and safety. The only reason I’m giving it 4 stars instead of 5 is that the harness straps can be a bit difficult to tighten. It takes a little extra effort to get them snug, which can be frustrating at times. Otherwise, the seat is comfortable, easy to install, and a great space-saving option for smaller vehicles. Definitely recommend! ... show more
Reviewed in the United States on March 14, 2025 by Kickasscaylee
    • BEST CARSEAT!!!
Color: Magenta Onyx Style: Poplar
Review Image by Kylsie Kylsie
The media could not be loaded. Been a Britax fan for over a decade when the roundabout was my favorite convertible seat. I just love the quality of this brand. It’s very sturdy, easy to install, Clean and most importantly extremely comfortable for my babies. This is my second purchase of the poplar and I love the slim profile makes fitting two in the back of my Honda ridgeline a breeze with room for another passenger. No cons for me it’s the absolute perfect seat. Get it you won’t regret it you will if you don’t. ... show more
Reviewed in the United States on February 12, 2025 by Kylsie Kylsie
    • Didn't know I could love a carseat so much!!
Color: Glacier Graphite Style: Poplar S
I didnt know it was possible to love a car seat so much. Installing takes literally seconds with the easy latch system and it is SO SECURE!! Like it seriously doesnt budge an inch. Love that it has two cup holders and is super comfy for my kiddo. Taking all the pieces off to wash is a bit of a project, but not that big of a deal. Its a little annoying that the shoulder pads dont come off for washing (at least I've tried a bunch of times and dont think they can???) BUT they got completely clean with a quick washcloth scrub so I am satisfied with that. I feel like my kid is totally safe in this seat!! ... show more
Reviewed in the United States on May 6, 2025 by Tori Mitchell

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...