SKU: 45609672004
maxi cosi all in one

maxi cosi all in one Maxi-Cosi Pria Chill All-in-One Convertible Car Seat

$19.69 $21.88
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

maxi cosi all in one Maxi-Cosi Pria Chill All-in-One Convertible Car SeatIntroducing the Maxi Cosi Pria Chill All in One Convertible Car Seat a game changing solution for keeping your child cool, comfortable, and safe on every drive. Featuring VentMax Technology, this innovative car seat is the first of its kind to include an automatic fan system designed to keep air circulating and maintain a comfortable temperature for your little one, even on warm days. Thanks to VentMax, the Pria Chill features built in sensors that

Introducing the Maxi-Cosi Pria Chill All-in-One Convertible Car Seat — a game-changing solution for keeping your child cool, comfortable, and safe on every drive. Featuring VentMax™ Technology, this innovative car seat is the first of its kind to include an automatic fan system designed to keep air circulating and maintain a comfortable temperature for your little one, even on warm days.

Thanks to VentMax™, the Pria Chill features built-in sensors that automatically engage two fans in the lumbar area and one in the headrest to provide airflow through open-cell padding and breathable mesh fabric. The best part? It’s water-resistant, quiet, and powered by your vehicle’s power port, so you won’t have to worry about spills or excess noise. This all-in-one convertible car seat grows with your child from birth to 10 years, offering rear-facing, forward-facing, and booster modes to ensure a secure fit through every stage of their growth.

Maxi Cosi Pria Chill All-in-One Convertible Car Seat Features

  • All-in-one convertible car seat suitable for children from birth to 10 years (5–100 lbs.)
  • Rear-facing (5–40 lbs., 19"–40"), forward-facing (30–65 lbs., 34.4"–49"), and belt-positioning booster (40–100 lbs., 43.4"–52")
  • VentMax™ Technology: Active fan system with 3 fans (2 in lumbar area, 1 in headrest) for enhanced air circulation
  • Automatically engages with VentMax™ sensors and includes an indicator light for activation
  • PureCosi™ fabrics are soft, breathable, and free from wool or added fire-retardant treatments
  • QuickFit™ harness: 5-position headrest and harness adjustment system with no rethreading
  • ReclineFit™: 3 reclining positions for better comfort and easy installation
  • ClipQuik™ Magnetic Chest Clip for easy and secure buckling
  • Side Impact Protection (SIP) for added safety
  • 1-click LATCH system for simple, secure installation
  • Removable, machine-washable fabrics and dishwasher-safe cup holders for easy cleaning
  • Meets or exceeds Federal Safety Standards

Maxi Cosi Pria Chill Safety Rating: Uncompromising, Top-Tier Protection

When it comes to car seats, safety is always a priority — and the Maxi-Cosi Pria Chill All-in-One Convertible Car Seat exceeds expectations. With Side Impact Protection (SIP), a secure 1-click LATCH system, and an intuitive installation process, this car seat ensures your child is safe and secure. Additionally, its advanced VentMax™ system provides extra comfort by regulating temperature, ensuring your child stays cool during long rides.

The Maxi-Cosi Pria Chill also meets or exceeds Federal Safety Standards, offering peace of mind that your child is traveling in one of the safest seats on the market. Whether in rear-facing, forward-facing, or booster mode, the car seat is designed to grow with your child, adjusting easily to different stages without compromising safety.

Maxi Cosi Pria Chill All-in-One Convertible Car Seat Manual and Installation Instructions

Installing the Maxi-Cosi Pria Chill is a breeze with the 1-click LATCH system that provides a quick and secure fit. The car seat also includes a clear and easy-to-follow manual for both first-time and experienced parents. The ReclineFit™ feature allows you to adjust the car seat’s reclining position, making it ideal for a wide range of vehicle types, while ensuring a comfortable and proper fit for your child at all times.

For any questions or concerns about installation, the Maxi-Cosi Pria Chill comes with a comprehensive user guide to help you make the most of your car seat, ensuring you’re ready for every journey. 

Maxi Cosi Pria Chill All-in-One Convertible Car Seat Reviews and Reddit Feedback

The Maxi-Cosi Pria Chill has earned rave reviews for its combination of safety, comfort, and innovation. Many parents appreciate the VentMax™ Technology, noting how the integrated fans keep their child cool and comfortable even on warmer days. The PureCosi™ fabrics are also a highlight, with users praising the soft and breathable material that’s free from harsh chemicals.

Reddit users often share their positive experiences, with parents discussing how easy it is to transition the seat from rear-facing to forward-facing, and finally to booster mode. The QuickFit™ harness adjustment system and ClipQuik™ Magnetic Chest Clip have also received glowing feedback for making the seat easier to use without a struggle. Overall, parents agree that the Pria Chill is a must-have for families who want a car seat that offers both top-tier safety and superior comfort.

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 45609672004

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4.1 ★★★★★
Based on 28 reviews
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Tee & Cee
Birmingham, US
★★★★★ 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
A
Verified Purchase
Andy
Birmingham, US
★★★★★ 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
A
Verified Purchase
AmazinFrank
San Leandro, US
★★★★★ 5
Very good product at a fair price
Model: SLH20025
Very good sound deadener and heat shield, it is a bit sticky to work with, but easy to shape and cut
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
E
Verified Purchase
Eric Caldeira
Phoenix, US
★★★★★ 5
I wish I had Siless 20 years ago!!!
Model: SLH20025, Model: SLH20025
I have installed all kinds of insulation in vehicles over many years. I only needed to purchase 2 boxes to complete the entire interior siding of my 2025 chevy express, what a great value! I wanted to insulate my locksmith van for sound and heat. The sound reduction virtually eliminated the road noise. These panels also look amazing. It got up to 110F in the sun with the doors closed. After adding Siless insulation the temperature maxed out at 97F. That is a massive difference. Plus, I didn't even finish with the roof before testing. Siless Hybrid 3in1 was extremely easy to cut and adhere onto metal panels. I'm impressed with the quality of the individual panels and the adhesive is not toxic smelling compared to some others. My favorite thing about these panels is you can actually take them off and readjust them before they finally stick and they do not leave any black residue behind when you pull them up to adjust them. All I needed was a heat gun, knife and a roller to complete this job. The size of each panel is perfect, you can handle them with ease. I probably won't need your product again for a while, but when I do I will definitely be back.
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Reviewed in the United States on September 21, 2025
M
Verified Purchase
Mark Kadrich
Belleville, US
★★★★★ 5
Works well and is easy to install.
Model: SLH20025, Model: SLH20025
I was sound and heat insulating a generator bay in my class A RV so I did three tests before and during material application: I did a sound level test to see how effective the material was for my application, a "stickiness" test, and a flammability test. This was indoors on a dry 78°F day. From beginning to end, the entire process, including testing, took 5 hours to install 25 sqft or material in a very complex area. One hour for cleaning, 3 hours for installation, and 1 hour for test setup and testing. Using a sound meter, I took before and after readings and determined that I reduced the sound level by 2.2 db (40% energy decrease) with a noticeable decrease in sound and frequency. The generator bay is located under the master bedroom in the aft portion of the coach. The sound went from a rattling, vibrating generator noise to a more tolerable low level rumble. The material was easy to apply. I did some testing prior to application and determined that surface preparation is key. I cleaned my painted metal surface and then degreased with acetone and the material stuck well. Be careful and purposeful when you apply the material because once it was stuck to the metal, it was quite difficult to remove or reposition. Since it was going to be installed into a gasoline powered generator bay located under our sleeping quarters, I did some flame testing to determine the level of risk. Although not highly flammable after installation, my testing revealed that the PE used will catch on fire under certain circumstances. In order to reduce the risk, I used aluminized duct tape to ensure that all the edges were sealed and the PE was not exposed to direct flame in the event of a fire. I also decided to install an automatic fire extinguisher as an added precaution. In all fairness there should be one installed in the generator bay anyway. All in all, I am very satisfied with the product and the results. I have recommended this product to my other RV owner friends.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2025

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