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Description
britax convertible car seat base BritaxBritax Poplar Convertible Car Seat: Ready for Now and the Future Say goodbye to car seat worries! The Britax Poplar Convertible Car Seat grows with your child while offering unmatched safety, convenience, and comfort. Featuring the patented ClickTight Installation and a slim SpaceSaver design, this seat makes transitioning to the next stage seamless for parents and safe for kids. Designed to accommodate children from 565 lbs, it supports rear facing
Britax Poplar Convertible Car Seat: Ready for Now and the Future
Say goodbye to car seat worries! The Britax Poplar Convertible Car Seat grows with your child while offering unmatched safety, convenience, and comfort. Featuring the patented ClickTight® Installation and a slim SpaceSaver™ design, this seat makes transitioning to the next stage seamless for parents and safe for kids.
Designed to accommodate children from 5–65 lbs, it supports rear-facing up to 50 lbs to keep your little one safer for longer, and transitions to forward-facing with ease. The slim, 17" profile allows for *3-across installations in most vehicles while offering spacious comfort for your child.
Key Benefits
ClickTight Installation
Installing the seat is effortless with three easy steps: open, thread and buckle the seatbelt, and click it closed. The fully open belt paths and automatic tensioner ensure a perfect fit every time.
SpaceSaver Design
Slim outside, spacious inside. The 17" seat width is designed to fit comfortably without compromising on the safety and premium comfort you expect from Britax.
Extended Rear-Facing Capability
Safely accommodates children up to 50 lbs and 49" tall for prolonged rear-facing use, offering added peace of mind for parents.
Why You'll Love It
- 14-Position, Quick-Adjust Headrest & Harness: Easily adjust as your child grows for a proper, snug fit.
- Patented V-Shaped Tether: Helps reduce forward movement in a crash with staged-release stitches for added safety.
- Dishwasher-Safe Cup Holders: Conveniently removable for quick cleaning.
- 6-Position Recline: Find the perfect angle for comfort and vehicle compatibility.
- SafeCell Technology: Absorbs and manages crash energy for added protection.
- 5-Point Safety Harness: Ensures even distribution of crash forces to keep your child secure.
- Naturally Flame-Retardant Fabrics: Free of added FR chemicals and safe for machine washing and drying.
- Carbon Steel Frame: Reinforces the seat for exceptional stability and durability.
Specifications
- Dimensions: 20.5" x 17" x 23.5"
- Child Weight: Rear-facing 5–50 lbs; forward-facing 22–65 lbs
- Child Height: Less than 49"
- Harness Slot Heights: 14 positions from 8" to 17"
- Buckle Strap Depths: 4"–7"
- Seat Area Depth/Width: 11"/12"
- Shoulder Width: 14"
Safety Recommendations
Britax strongly recommends:
- Rear-Facing: Keep children rear-facing to the maximum weight or height allowed.
- 5-Point Harness: Use the 5-point harness until your child reaches its maximum capacity.
- Top Tether Usage: Always secure the top tether when the seat is installed forward-facing.
Why Choose Britax?
Britax has a legacy of safety and innovation, and the Poplar Convertible Car Seat embodies these values. With its advanced features, durable construction, and commitment to your child’s safety, this car seat is the perfect choice for your growing family.
*Fitment of 3-across installations may vary depending on the vehicle.
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
4.4 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Best Shampoo/Conditioner I Have Ever Used
Scent: Nettle, Scent: Nettle
I purchased the Nettle Shampoo in hopes of getting my hair back to health after frying it off with bleach. I used it for the first time today and it is my favorite thing I have ever purchased for my hair. The smell of this is divine. I am not a sweet gourmand fan and this is just the most fresh scent I ever smelt I think. It honestly smells like a high end salon shampoo/conditioner duo. That is my favorite part about this product.
Second favorite is that it actually does work soooo well! I put in quite a bit of oils and hair care before washing my hair and all of those oils were removed without leaving any waxy greasy feel to my hair. I was concerned it wouldn’t come out because this shampoo is 99% lather free. But it worked SO GOOD! It doesn’t feel dried out and brittle either. It’s just perfect I can’t stress it enough. 10/10 I wish there were more way I can say how much I adore this product.
I have very fine hair by the way and it doesn’t weigh it down.
I will keep using this and will update in maybe a month with pictures!
Here’s the update: I used the shampoo and conditioner for idk probably a month. I’m not really sure. BUT I still absolutely love it. In the pictures I am going to attach, you can see that I had a decent amount of growth (the hair from the root that looks gray). My hair is quite oily after other hair care products were added so that’s why it looks the way it does. One more thing, the shampoo is very drying on the scalp I have noticed a little bit of dandruff and itchiness right after washing but I believe my scalp is getting used to it now because it’s getting less and less noticeable after every use. Keep in mind my hair had been chemically treated during the first week of use multiple times including bleach and box dye so that’s probably why it was irritated.
I still absolutely adore the scent and the way it leaves my hair feeling light and clean and shiny and SOFTTT!
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Great product, poorly designed bottles.
Scent: Onion Unscented
I like this product! However, the bottles are heavy, bulky and awkward, what a waste of plastic. The design is poor. The conditioner top was broken, and the product was so thick it was very hard to try and get out of the unyielding bottle when I unscrewed it. Had to ask for a replacement. But it smells great and leaves my hair very soft. I had gotten one for my mother (87) but the bottle was a little much for her, too bad. There's less in it than what it looks like, as it has an inner, smaller container. A lot of trouble and cost to save a small amount of product.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Great product for damaged bleached hair
Scent: Keratin
Great shampoo and conditioner. Smooths the frizzy ends. I bleach my hair and I am unhappy that this product appears to have washed or altered the toner. I have platinum bleached hair and I put a pale blonde toner on it. I waited 4 days after I bleached and toned my hair to use your product and the end result was yellow hair not that beautiful pale blonde color. I will play around with purple shampoo and your product to see if I can find a happy medium because I do love the silky feeling on my damaged over-processed hair. Thanks for developing such a wonderful product for damaged hair
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Shiny Hair? Yes please
Scent: Onion Unscented
I have used this product just a few times since buying it. It made my hair shiny and smooth. Very minimal frizz. I bought it after doing research on how women helped their hair before all these hair products came out and Onion water was one of the top answers. After believing that I wanted onion smell in my hair, I came across this product and it actually smells SO NICE. After blow drying my hair, my hair was fuller and bouncier. I saw a difference right away. I have seen less hair in my shower drain and I honestly couldn't be happier with this combo.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Excellent product at a very fair price
Scent: Caffeine
I have been using the caffeine version of this shampoo and conditioner for a little over three months.
I like to give a new shampoo and conditioner about three months before concluding if it’s a hit or a miss.
Originally, I was using the biotin version of this shampoo for approximately two years and was very happy with the results.
I needed to reorder, so I was looking over the other options in this same brand. This brand is considered to be a good quality product. I did do a bit of research before originally purchasing the biotin version.
The biotin version is a lightweight product that did not weigh my hair down with build up over several uses. I ended up needing to use a clarifying shampoo only about once a month, as opposed to once every week.
I have very fine, thin hair and a lot of products I have tried over the years have not worked for me because of the heaviness that leaves my hair flat. I did not have this result with the Bellisso Biotin shampoo.
Bellisso is very well priced, and in my opinion, is comparable to more expensive salon products.
I do like to try new things, so trying a different version of a brand that I was already happy with seemed like it didn’t come with much risk.
Comparing the two versions, biotin vs caffeine:
The biotin option worked very well on my fine, thin hair. The shampoo had a bit of a lower amount of foaming, but it did get my hair clean. The biotin conditioner also worked well, and was easy to rinse out and did not leave a residue on my hair.
The caffeine version is very different than the biotin version, but neither in a good way or a bad way. Just different.
I noticed that much less product of the caffeine shampoo and conditioner is needed to get the job done. The amount of product needed is probably highly dependent on your particular hair, so keep in mind, I probably have less hair than most people.
The shampoo foams ALOT. I didn’t mind this at all. Per the instructions on the bottle, you are supposed to apply and massage your scalp and rinse after 2-3 minutes so the caffeine can be absorbed into your scalp, so having that extra foaming helps. This is meant to stimulate circulation in the scalp, and promote hair growth. If you are the girl that is always in a hurry, this is probably not the version of this shampoo for you :)
The caffeine conditioner goes a very long way, so best to start with half as much as you normally use and go from there.
All in all, I’m happy with both versions and I would definitely consider trying another version of this brand.
I would highly recommend this brand in whichever version suits your personal hair type and needs.
The price is right, as is the quality.
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Reviewed in the United States on May 18, 2026