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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
maxi cosi pria 3 in 1 vs max Maxi-Cosi Pria All-in-One Convertible Car SeatIf youre reading this, you know all too well that choosing the right car seat is a super important decision. Thankfully, the Pria Max All in One Convertible Car Seat, now featuring PureCosi, may just be the only car seat youll ever need. (Unless, that is, yet another little one comes along) All in One Seating System With the Pria All in One Convertible Car Seat, you can take comfort in knowing that youll have a safe, comfortable car seat for your
If you’re reading this, you know all too well that choosing the right car seat is a super important decision. Thankfully, the Pria Max All-in-One Convertible Car Seat, now featuring PureCosi, may just be the only car seat you’ll ever need. (Unless, that is, yet another little one comes along…)All-in-One Seating System
With the Pria All-in-One Convertible Car Seat, you can take comfort in knowing that you’ll have a safe, comfortable car seat for your child, from birth to 10 years old. Children can ride rear-facing, from 4-40 pounds; forward-facing to 65 pounds; and up to 100 pounds in booster mode. It may be the only car seat you’ll ever need. Converting the Pria All-in-One Convertible Car Seat to each new stage is simple and intuitive, so you can quickly make car seat adjustments. It allows for a wide range of adaptability with its 3-position recline, 5 headrest heights, along with a QuickFit shoulder harness.
Next Level Features
You’ll embrace how easy it is to get your child in and out of the seat with the ClipQuik™ one-hand, magnetic chest clip, buckling in and out is struggle-free.
Superior Safety
The QuickFit shoulder harness automatically raises the harness and headrest height to fit your growing child. It’s important to have the flexibility to customize your car seat to ensure that you keep safety where you need it.
PureCosi™ and Supreme Comfort
We are committed to caring for precious life, ensuring that only the highest quality materials are used in our products. With PureCosi™ we’ve launched new fashions that no longer require fire-retardant chemicals. Carrying the future means protecting your little one, and our planet.
Soft-to-touch cushions and premium fabrics and padding throughout provide supreme comfort for your child during the journey. The Pria All-in-One fabrics are designed to keep your little one comfortable and cozy. The covers are easy to remove, machine washable and dryer safe.
Because they grow up so fast
The Pria Max All-in-One Convertible Car Seat is built to grow with your child. Because trust us, growth spurts really do happen overnight – and the Pria is here for the long haul. Pria All-in-One. Designed to keep up with your growing family.
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 342 reviews
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Product Reviews
★★★★★ 5
Great product!
Style: 30 sqft
I can say this product makes a huge difference with road noise and is cleaner and easy to work with when applying compared to other mats that cost about the same price.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Very heavy and thick
Style: 30 sqft
I purchased mini brands of sound ending and this is by far the heaviest sound deadening I've ever ordered. I'm not installed yet but I have a good feeling that is going to work exceptionally in blocking sound. If weight is a concern for you I would recommend a lighter product however if sound quality and a quiet ride is your priority this is the one for you.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Siless Hybrid 3-in-1 - Far Exceeded my Expectations!!!
Model: SLH20025
I recently installed the Siless Hybrid 3-in-1 sound deadening mat in my vehicle, and I’m genuinely impressed. For just $80 for 25 square feet, this product delivers performance that rivals materials costing twice as much — and with far less hassle. If you're on the fence......Just buy it! You will not be disappointed.
Easy to Install: Unlike traditional sound deadening products that are stiff, sharp, and temperature-sensitive, this mat is soft, flexible, and easy to work with. I cut it cleanly with regular scissors and pressed it into tight spaces using just my fingers, so if in you don't have a roller or install tool, a good pair of scissors and your hands can get the job done. With other brands like Dynamat, the aluminum layer often leaves micro cuts on your hands and tears up your fingertips, but Siless does not due the acoustic layer being on top and above the aluminum layer that holds the butyl layer. So, it's very easy on your hands.
Even in cooler temperatures (around 50°F), I had no trouble applying it but it goes on better heated. If warm outside, I would leave the entire box out in the sun for at least 30 minutes when it's warm or heats it's very pliable and easy to mold. Make sure its where you want it because once applied it's not ever falling off. and it became even more pliable and easy to mold. No heat gun, no mess — just straightforward application.
I installed 40–50 square feet throughout the interior, covering everything except the headliner and the flooring forward of the rear seat. The difference in cabin noise is astonishing. I can turn my radio up concert loud with gut-punching bass, and from outside the car, it sounds like a factory sound system at mid volume. I was blown away by how well it contains sound — both inside out and outside in.
My exhaust is pretty aggressive and now is barely audible from inside the cabin. While driving, it almost sounds like a stock factory setup. The Siless matting actually changed the driving experience and feels refined.
If you're skeptical about sound deadening gimmicks, I get it, but this is the first product I've used and when I needed more, I went Stright to the 3 in 1 Hybrid matting and purchased it again. I love researching before buying and that's very uncommon for me to do.
Note: Proper installation is key, and it does take time and patience. But if installed correctly and in the right places, it works better previously used from paint-on sound deadening to Dynamat.
Update Nov, 2025
After using it this in 4 separate vehicles now. I feel the Siless’s 3 in 1 Hybrid has nailed it for best budget deadener that is better than dynamat extreme in performance and installation
Protip: buy a roll of 2-3” aluminum tape and tape the seams. After trimming the edges tend to very sticky between the panels. I ran a strip of aluminum tape over the seems to create a better seal and true moisture
I used it on four vehicles now and have I have not been paid to review and purchased every order myself.
3 in 1 Hybrid deadener by Siless is the best all around easy to apply sound deadner period!
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Top quality
Model: SLH20025
This Siless Hybrid 3-in-1 sound deadening mat is easy to work with and feels high-quality. The butyl material is thick and pliable, making it simple to cut and fit into doors, floors, or panels.
After installation, road noise and vibrations are noticeably reduced, and it also seems to improve the overall cabin feel. No bad smell.
At 25 sq ft per roll, it’s a good value for anyone looking to dampen noise and improve car acoustics. Overall, a solid, effective option for automotive soundproofing. Used on a Fiesta ST.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Made a big improvement in cabin noise—highly recommend
Model: SLH20025
Siless Hybrid made a huge difference in reducing noise in the floor of my truck cabin. In some areas, there was basically just bare sheet metal between the inside and outside, so adding this really helped the truck feel more solid and noticeably quieter on the road.
I used Kilmat on the doors, and honestly I wish I had used Siless Hybrid there too, but it was too late by the time I realized the difference. This material is very sticky, easy to cut, and simple to apply, which made the install pretty smooth.
Just a heads-up: the tacky side gets messy and will bond to clothing really easily, so be careful during installation. Overall, I’d definitely buy it again—great product with real results.
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Reviewed in the United States on December 2, 2025