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Radian® 3R

Radian® 3R

The original 3 Across All-In-One™ convertible car seat

Radian® 3R now available in up to 3000 Walmart Stores

Diono has launched its first in-store partnership with Walmart. With the launch, Diono will offer the Radian® 3R car seat, making the product more accessible. What’s more, the 3R has been approved by the FAA for air travel.

Diono’s Radian® 3R is the original 3 Across All-In-One™ convertible car seat. Suitable from birth to 120 pounds, and rear-facing for longer, up to 50 pounds, the Radian® 3R fits children for up to ten years by converting from a car seat to a booster – plus it folds for easy portability. With an automotive-grade steel core frame, side-impact protection, 5-point harness, and seat width expanders, this seat grows with the child without compromising child safety or passenger comfort.

The Radian® 3R will be available in Black Jet, Blue Sky, Gray Slate, Pink Blossom, and Red Cherry at All of Diono’s colorful seat covers are machine-washable.

Now available in Walmart stores

Black and Pink only


Rear-facing for longer

Designed and engineered to keep your child rear facing even longer up to 22.7 kg / 50 lb. approx. 4 years old


10 years one car seat

With 4 ways to travel from birth to booster, the Radian® 3R adapts as your child grows to offer a custom fit from birth up to 54 kg / 120 lb.


The original 3 across

Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.


Steel Core

Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.

Radian® 3R

The original 3 Across All-In-One™ convertible car seat


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