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

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

Introducing the Pria All-in-One convertible car seat, baby's first and only car seat. Surround your child in comfort and safety from the first ride home.

What’s in a Name, You Ask? 

Just like the care you take to name your new little bundle of joy; we take great care in choosing names that best explain what you get with our products. And if our car seats have everything you need “all in one”, why not come out and say it? So, here it goes – our convertible car seats will now carry the name “All-in-One”. From birth to ten years, you get everything you need in a single car seat to keep your child cozy and safe. All in one is all you need. 

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.

Superior Safety Features

Drive with confidence knowing that the Pria All-in-One Convertible Car Seat is backed by over 30 years of European engineering and exceeds all federal standards, including FMVSS 213. GCell side impact protection is built into the headrest to cushion the impact, and protect your child around the head where it’s needed most. The QuickFit shoulder harness automatically raises the harness and headrest height to fit your growing child. Children grow at different rates so it’s important to have the flexibility to customize your car seat to ensure that you keep safety where you need it, when you need it.

Supreme Comfort

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.


Adjustable Headrest
QuickFit shoulder harness automatically raises the harness and headrest height.

Easy In and Out of the Seat
In and Out harness holders keep straps out of the way when buckling.

Support Starting at 4 lbs.
Removable infant pillows provide extra support and comfort.

Quick & Simple Install
One-click LATCH connectors for easier installation.

3-Position Recline
Easier and faster to install correctly in the car.

2 Cup Holders
Both dishwasher safe and easy to remove.

Simple to Clean
Seat pad and harness covers are both machine washable and dryer safe.


Weight Class: Rear Facing 4-40lb and 19-40 in.
Forward Facing 22-65lb and 29-49 in.
Booster 40-100lb and 43-52 in
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