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- USA
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
britax booster seats Britax Poplar S Convertible Car SeatThe Britax Poplar Convertible Car Seat can safely accommodate children up to 50 pounds while rear facing and easily transitions to a forward facing car seat as your child grows. Slim outside and spacious inside, the toddler car seat features 17" SpaceSaver technology designed to fit 3 across* without compromising on trusted Britax safety and premium comfort. *Britax cannot guarantee 3 across installation fitment in all vehicles. Specifications
The Britax Poplar Convertible Car Seat can safely accommodate children up to 50 pounds while rear-facing and easily transitions to a forward-facing car seat as your child grows. Slim outside and spacious inside, the toddler car seat features 17" SpaceSaver technology designed to fit 3-across* without compromising on trusted Britax safety and premium comfort.
*Britax cannot guarantee 3-across installation fitment in all vehicles.
Specifications
- Convertible design car seat works as a rear-facing car seat with the infant insert, and converts to a forward-facing car seat.
- 2 additional premium inserts and padding that help create refined comfort and a tailored fit.
- ReboundReduce™ Stability Bar is a carbon steel bar that easily attaches to the car seat when installed rear-facing. It minimizes the movement in the event of a crash; it must be removed when installed forward-facing
- With ClickTight, you know it’s right in just 3 easy steps: open, buckle, and close.
- Infant inserts are specifically designed to fit newborns 22 lbs. and under.
- 5-point safety harness helps evenly distribute crash energy to keep your child safe.
- Fully open seat belt paths are clearly labeled and easy to access, while the automatic tensioner takes care of the tightening.
- Patented v-shape top tether has two connection points to help slow and reduce forward movement in a crash; easily stores away when not in use.
- The fabric is naturally flame retardant with no added FR chemicals
- Safecell Technology acts as a crumple zone, helping to keep crash energy away from your child.
- The 14-position harness and headrest move with one hand to grow with your child.
- Washer and Dryer Friendly, no more hand washing or waiting for the cover to air-dry; just quick and easy cleanup, so you can keep moving.
- The 2 cup holders slide in and out and are dishwasher-safe for easy cleaning between rides.
- Easy-read level indicators with 6-position and quick-adjust recline help you find the most comfortable fit for your child and the best fit for your vehicle.
- 1-Year Limited Warranty.
Dimensions & Weight
- 17" W x 23.5" H x 20.5" D
- Child Weight Rear-Facing: 5 - 50 lbs.
- Child Weight Forward-Facing: 22-65 lbs.
- Child Height: up to 49"
- Seat Area Depth/Width: 11" / 12"
Britax strongly recommends that children ride rear-facing to the highest weight or height specified.
What's Included
- Convertible Car Seat
- 2 Removable Premium Inserts
- 2 Dishwasher Safe Cup Holders.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 117 reviews
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Product Reviews
★★★★★ 5
Quality product you
Model: 18 SqFt(1.7 SqM), Model: 18 SqFt(1.7 SqM)
Summary: Great quality product, priced right. Cuts and installs easy-follow the instructions people!! PRO TIP-you don’t need to cover every square inch. OVERKILL!! Think about it-when a bell rings you could put your fingers on the edge and silence it right? Same rules apply here. A strip or square will isolate the vibration and notice when placed correctly— knock on the surface and see what vibrates or what part makes the loudest drowning and that’s a good clue of where you should put a piece of this…unless you’re trying to use it for temperature insulation no need to go ape on it. If you look at the bottom of a stainless steel sink, it’s got a stripe or a small sticker of insulation that keeps it from rattling. You can do that here. What’s important to note is the instruction specifically say use a roller to roll the ribs out until it’s smooth that way you’ve got maximum adhesion. I see a lot of pictures and videos from people that finished their install and didn’t follow this simple instruction. It makes sure that it’s stuck down before you put all your paneling and carpet back in and it’s a small step with a cheap wooden roller it’s easy. I’ll say the installation with this product is a breeze. You can use sharp scissors or a blade. It does get gummy after a while, and you may need to clean off your blade or your scissors, but it cuts very well and the ribs make it easy to size in space the thickness is fantastic and the backing paper comes off quite easily. I’ve done lots of installations with Graphics emblems you name it and this product is very easy to use and represents good value.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great.
This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over.
It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement.
It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way.
Get it. Use it.
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great
Why did you pick this product vs others?:
Fair price for the amount of coverage, good quality
Works well:
Easy to install, rolls out great. Forms to contours well
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
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Reviewed in the United States on April 14, 2026