Maxi-Cosi Petra All-in-One Convertible Car Seat, Sea Drift
Maxi-Cosi Petra All-in-One Convertible Car Seat, Sea Drift
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Maxi-Cosi Petra All-in-One Convertible Car Seat, Sea Drift

|26 ratings
Maxi-Cosi Petra All-in-One Convertible Car Seat, Sea DriftMaxi Cosi Petra All in One Convertible Car Seat Sea DriftMaxi Cosi Petra All in One Convertible Car SeatMaxi Cosi Petra All in One Convertible Car Seat Seascape
Actual ColorSea Drift

Key item features

  • All in one convertible car seat with 3 modes for children from birth up to 10 years (5–100 lbs.)
  • 1 click LATCH connectors for fast, easy, secure installation
  • Rear facing car seat for babies (5–40 lbs., 19"–40"), forward facing car seat for toddlers (30–65 lbs., 34.4"–49"), and belt positioning booster seat (40–100 lbs., 43.4"–52")
  • PureCosi™ plush fabric made without added fire retardant treatments
  • EcoCare future-friendly fabric made from 100% recycled plastic bottles that is soft and breathable
  • QuikFit 1 hand adjustable, 8 position headrest and harness
  • Easily adjustable 3 position base for the perfect fit in your car

Specs

Safety harness style, 5-Point HarnessChild car seat style, Convertible Car SeatsCar seat facing direction, ConvertibleMinimum weight, 5 lbForward-facing minimum weight, 30 lbForward-facing maximum weight, 65 lb

About this item

Product details

The Maxi-Cosi Petra All-in-One Convertible Car Seat is designed to be there for all of life’s adventures. Created to grow with your child from their very first journey home through the elementary school years, Petra brings together long-lasting comfort, trusted safety and protection, and thoughtful design—so you can focus on the moments that matter most. The Petra 3 in 1 car seat is crafted with PureCosi™ fabrics made without added fire retardant treatments, paired with EcoCare, our premium, 100% recycled fabric made from plastic bottles. The result is soft, breathable, and beautifully refined. Installation is fast and easy thanks to 1 click LATCH connectors, designed to help ensure a secure attachment with minimal effort. As your child grows, features such as a 3 position adjustable base and a QuikFit one hand adjustable 8-position headrest and harness system make transitions simple and intuitive. The Petra All-in-One Car Seat for babies, toddlers, and big kids is designed to adapt through every stage from 5 to 100 lbs. with 3 modes of use: rear facing infant car seat (5–40 lbs. and 19”–40”), forward facing toddler car seat (30–65 lbs. and 34.4”–49”), and belt positioning booster car seat for big kids (40–100 lbs. and 43.4”–52”). Actual fit may vary. Not all children will comfortably fit in the seat for the full weight and height ranges listed. Proudly made in Columbus, Indiana. 
  • All in one convertible car seat with 3 modes for children from birth up to 10 years (5–100 lbs.)
  • 1 click LATCH connectors for fast, easy, secure installation
  • Rear facing car seat for babies (5–40 lbs., 19"–40"), forward facing car seat for toddlers (30–65 lbs., 34.4"–49"), and belt positioning booster seat (40–100 lbs., 43.4"–52")
  • PureCosi™ plush fabric made without added fire retardant treatments
  • EcoCare future-friendly fabric made from 100% recycled plastic bottles that is soft and breathable
  • QuikFit 1 hand adjustable, 8 position headrest and harness
  • Easily adjustable 3 position base for the perfect fit in your car
info:
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Specifications

Safety harness style

5-Point Harness

Child car seat style

Convertible Car Seats

Car seat facing direction

Convertible

Minimum weight

5 lb

Warranty

Warranty information

This product is warranted against defective materials or workmanship for 1 year from the date of original purchase.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.5 out of 5 stars
stars
26 ratings25 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars54% (14)
  2. 4 stars46% (12)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 25 reviews

Aug 29, 2026
Reviewer name: Dawn
5 out of 5 stars
5 out of 5 stars review

Baby does not cry on long car rides anymore

[This review was collected as part of a promotion.] I received the Maxi Cosi Petra Convertible Car Seat from Stellar Product Testing Panel but I would purchase this Car Seat again and again! The fabric and cushions are so soft, my 6 month old was immediately more comfortable in this compared to his last infant car seat. Rides went from screaming to comfortable! I recommend starting out with this car seat from the beginning. It grows with your child up to 100 lbs, so we will be using this for years to come. He will be rear facing for a long time but there's plenty of room and it fits in a small SUV perfectly. There's 2 cup holders so at this age we usually keep extra pacifiers in there, but it will be so useful when he's old enough to hold his own bottle/drink. I want to mention the cushions and soft fabric again because it truly is such good quality.

Review from doreljuvenile-maxicosi
Helpful?3BP0IW65JTKX21081058727
Aug 31, 2026
Reviewer name: JP6219
5 out of 5 stars
5 out of 5 stars review

Love this convertible car seat

[This review was collected as part of a promotion.] I love this convertible car seat that I was given to try as part of the Stellar Product Testing Panel! My first impression was how nice and quality everything felt. The cushions and padding are very soft and the overall look is sleek. My son was very comfortable and happy riding in the seat and that's important to me! I'm not great at installing or putting together baby gear so I was very happy to see that everything was easy to install. It's helpful to have a level guide on the side to ensure it's installed correctly! I have used a rotating convertible car seat in the past, and while that has its own perks, I really liked that this was just one piece to install. It's easy to move from car to car, if necessary. I am using this car seat for my 16 month old and I love that it will grow with him for years! It feels and looks very safe and secure and makes me confident that we will get lots of use out of it. Overall, I am very happy with the Maxi Cosi convertible car seat and am excited to use it for years to come!

Review from doreljuvenile-maxicosi
Helpful?3BP0IW65JTKX21081058727
Aug 30, 2026
Reviewer name: Maxi
5 out of 5 stars
5 out of 5 stars review

Maxi Car Seat

[This review was collected as part of a promotion.] I received this Maxi Cosi Car Seat as part of the Stellar Product Testing Panel. Overall I have no complaints. The car seat is relatively light for being a convertible car seat. The padding and seat feel relatively comfortable and both my 1 year old son and nephew had no complaints. Install was easy once i read the instructions haha. We did use it both rear and forward facing. I do like it forward facing more as it seemed more comfortable. Only downfall is rear facing in a Kia soul is hardddd the car is small for the size of this car seat so getting my son in and out was hard but when my nephew used if forward facing it was fine. Pictures are from my mom's larger vehicle. Would definitely recommend it

Review from doreljuvenile-maxicosi
Helpful?3BP0IW65JTKX21081058727
Current price is $229.99
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Sold and shipped by Dorel Juvenile GroupPro Seller
4.601694915254237 out of 5 stars
4.6 stars out of 5, based on 1416 seller reviews(4.6)
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