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Britax

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

  • Based on 659 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by CapitalKidz
Arrives Tuesday, Mar 17
Order within 16 hours and 31 minutes
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Color: Cobal 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.

Maximum Weight Recommendation: 65 Pounds


Minimum Weight Recommendation: 5 Pounds


Maximum Height Recommended: 49 Inches


Rear Facing Maximum Weight: 50 Pounds


Forward Facing Maximum Weight: 65 Pounds


Rear Facing Minimum Weight: 5 Pounds


Forward Facing Minimum Weight: 22 Pounds


Installation Type: Seat Belt


Orientation: Rear and Forward Facing


Harness Type: 5-Point


Number of Height Positions: 14


Brand: Britax


Age Range Description: Newborn to Toddler


UPC: 652182743086


Global Trade Identification Number: 86


Manufacturer: Britax USA


Item Type Name: Car Seats


Unit Count: 1.0 Count


Manufacturer Warranty Description: 1 year manufacturer limited


Item Dimensions D x W x H: 20.5"D x 17"W x 23.5"H


Item Weight: 27.2 Pounds


Material Type: Plastic


Color: Cobal Onyx


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 17

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.

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Learn more about financing & leasing here.

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Top Amazon Reviews

    • Love, Love, LOVE!
Color: Cobal Onyx Style: Poplar
From the moment we unboxed these seats, we were happy! We bought the cobalt onyx and the magenta onyx for our 1 & 2 1/2 year old! Now I learned that the headrests in most cars must come off for a proper forward facing fit, but our children will rear face for as long as possible! Which is until they max out the weight/height for rear facing. They fit perfectly rear facing in our 17 Traverse. They went in with no problems! Easy installation and the babies love them! Our 2 1/2 year old would always unbuckle her Graco 4Ever DXL chest clip, and she hasn’t figured out this one yet, or it’s more comfortable for her! Thats a HUGE plus in our book! It’s nice to know and not have much anxiety going out and about with our kids knowing they are safe. The colors are just a bonus! If your child is under the rear facing requirements and you’re wondering if it’s worth buying if you don’t have removable headrests, I assure you, it is! They can rear face up to 50lbs! It’s much safer to rear face as long as possible anyways! You won’t regret this seat and keeping your child safe! ... show more
Reviewed in the United States on February 26, 2024 by Ashley Scarinzi
    • Easy install 3 across! Nuna to Britax convert
Color: Cobal Onyx Style: Poplar
I got 2 of these to ensure I could 3 across in my ‘22 Subaru Outback, which is not the friendliest for 3 across arrangements. But, it works! They have a super easy install. It does need to be reinstalled periodically as I do have the clicktight loosen from time to time. I did have a problem with the hip strap randomly fraying on one of my poplars, but Britax was quick to replace the harness. My main complaint is that although the main cover of the seat is washable, the shoulder pads don’t come off for washing as far as I’m aware. They’ve gotten quite yucky, because toddlers, but spot cleaning has not been very successful. ... show more
Reviewed in the United States on December 13, 2025 by Chris
    • Favorite car seat as a mom of 3!
Color: Cobal Onyx Style: Poplar
I’ve been a loyal purchaser from Graco for all of my kids seats, infant, convertible, Forward facing harnessed & High back boosters (older kids 4&6) but this time around I wanted to try something different. This seat was comparable price wise to the Graco we’d been looking at but holy smokes the quality is unmatched!! The padding feels so luxurious compared to any of the Graco seats we’ve bought. The seat itself is pretty heavy but that doesn’t make a difference for us as it will stay in my car. The ClickTight install is game changing! Seriously so easy! I love that it has optional cup holders, my son is currently 7 months old so he doesn’t need them right now but it will be helpful to have them as he gets older. He used to cry every time we put him in his infant seat but has not cried once in the car since switching him to this seat! ... show more
Reviewed in the United States on February 16, 2024 by Katie Lightner
    • Great carseat annoying that it's last years model
Color: Cobal Onyx Style: Poplar
I absolutely love this carseat. Obsessed with it. However it was the previous years model, which means it won't last as long for my next kid!
Reviewed in the United States on June 2, 2025 by SB
    • Get ti
Color: Cobal Onyx Style: Poplar
Best carseat ever! So easy to travel with, people compliment it at the airport. Easy to switch between cars because the install is simple and fast. We didnt want a huge 360, this one is best slimmer option.
Reviewed in the United States on November 9, 2025 by Amazon Customer
    • Good cushion
Color: Cobal Onyx Style: Poplar
It's very comfortable! My infant seems pleased with it. I cannot comment on the installation my boyfriend did that part. I chose this because it has a higher weight limit for a rear facing. It's good quality
Reviewed in the United States on May 3, 2025 by Leidy Amy
    • Best car seat!
Color: Cobal Onyx Style: Poplar
This is our 5th car seat and by far our most favorite. Fits in smaller cars, tightening mechanism is great to both the child and the seat to the car. It's snug fit in every vehicle we have used.
Reviewed in the United States on November 15, 2025 by Chris
    • Loovvee
Color: Cobal Onyx Style: Poplar
Love the design the comfy is n tx level so super soft fairly easy to install.
Reviewed in the United States on January 13, 2025 by Kells

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