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🚗 Secure your peace of mind with Britax Poplar S — where safety meets sleek style!
The Britax Poplar S Convertible Car Seat offers a slim 17-inch design ideal for fitting three seats across most vehicles. Featuring ClickTight technology, installation is quick and foolproof. It supports children rear-facing up to 50 lbs and forward-facing up to 65 lbs, with a 14-position adjustable harness and headrest for a tailored fit. Safety is paramount with a carbon steel frame, SafeCell crumple zone, and ReboundReduce stability bar. Comfort and convenience come from premium padding, naturally flame-retardant fabrics, and easy-to-clean covers and cup holders.

















| ASIN | B0CRWGG3XW |
| Age Range Description | Newborn to Toddler |
| Best Sellers Rank | #10,987 in Baby ( See Top 100 in Baby ) #35 in Convertible Child Safety Car Seats |
| Brand | Britax |
| Color | Sand Onyx |
| Customer Reviews | 4.8 out of 5 stars 62 Reviews |
| Forward Facing Maximum Weight | 65 Pounds |
| Forward Facing Minimum Weight | 22 Pounds |
| Harness Type | 5-Point |
| Infant Toddler Car Seat Type | Convertible Car Seat |
| Installation Type | Seat Belt |
| Item Dimensions D x W x H | 20.5"D x 17"W x 23.5"H |
| Item Weight | 28 Pounds |
| Manufacturer | Britax USA |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Height Recommended | 49 Inches |
| Maximum Weight Recommendation | 65 Pounds |
| Minimum Weight Recommendation | 5 Pounds |
| Model Number | E1C943V |
| Number of Height Positions | 14 |
| Orientation | Rear and Forward Facing |
| Part Number | E1C943V |
| Product Dimensions | 20.5"D x 17"W x 23.5"H |
| Rear Facing Maximum Weight | 50 Pounds |
| Rear Facing Minimum Weight | 5 Pounds |
| UPC | 652182743994 |
| Unit Count | 1.0 Count |
M**Z
Happy Toddler, happy siblings and great road trip+
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!
L**L
Britax is best!
Love this car seat! The color is beautiful and the install was the easiest I’ve ever done! The click tight is where it’s at! My baby is 7 months old and small for his age, but we wanted to switch from the bucket seat because he was getting too heavy to carry around in it. I’m really glad we chose this car seat. Baby loves it. Seems very comfy because it has a lot of padding. It feels like a very safe car seat. We bought two. I tell everyone they could buy it!
A**E
Quality and safe!!
We LOVE this car seat! So easy to install and feels so safe. Heavy duty and looks lux too.
J**X
The install is the reason to buy it!
The best! I bought this when transitioning our 8 month old when I didn’t want to carry an infant seat. She fit so well (despite being tiny!) but the install is incredible!! So easy with very clear directions. Simple to get it tight. We tried a Graco car seat and found the install really challenging. The fabric also feels nice and high quality (have had it over a year now).
S**N
Super comfy for baby!
The slim fit was perfect for adding our one-year-old to the third row of our van where her brother and sister already sit. Granted, the other two children are now in minimal booster seats only, so we didn't have to worry about fitting three full car seats into one row. Still, the bigger kids have enough elbow room on either side of this car seat and haven't complained about feeling cramped at all - they were quite excited for sissy to sit with them! The color is true to the advertised photos, it looks like a light champagne beige. The cushions are extremely cushy, and separate from the frame easy enough to make washing the seat padding less of a hassle compared to other car seats we've owned. The foot bar at the base of the seat for rear-facing installation adds significant stability and isn't difficult to include in the installation process. While we took advantage of a 20% off sale for this seat, we would have still purchased it at full price due to how safe it is for our child and comfortable to boot. It's worth every penny!
S**A
short shoulder straps
I bought a car seat in February 2025, my child is 2.4. I chose a safer and higher one so that he could see out the window. It is heavy and easy to install in the car, the cushions are enough, which can be removed as he grows. My son really liked the new seat. The only thing I don’t like is the very short straps on the shoulders, the last two days he has been complaining that the fastener between his legs is pressing on him and asking to release it. I tried to lengthen them under the seat, but I pulled out everything I could and it was not enough. I don’t know what to do ... maybe someone can advise me ...
M**A
High quality
I was dead set on purchasing a Nuna Rava, however I was turned off by the nonsensical cup holder placement. This Britax Poplar car seat came up in my final search as a compact seat that was also high quality. Being so determined on the Nuna Rava, I half expected that I might return the Poplar S. However I was pleasantly surprised by the quality and design of the Britax. The fabric is super soft and the seat is extra padded. I was previously using a hand-me-down Safety1st car seat and it’s insane how better the Poplar quality is as compared to a $150 car seat alternative. This seat is compact and fits well in my Subaru Impreza Sport. Install was pretty easy but I will need to put a rolled up towel under the seat to even it out and use the rebound bar. Summary: I’m impressed by this car seat as a competitor to other high-end, pricier alternatives like the Nuna Rava.
S**Y
Great seat
Love this seat. We had a boulevard (discontinued predecessor of this seat) but needed something slimmer. The clicktight is the best invention for car seats. I hate installing other seats by comparison. So far it, like its predecessor, stand up great to the kids!
Trustpilot
2 weeks ago
1 week ago