Radian® 3RXT

The Diono Radian® 3RXT is the original 3 across All-in-One convertible car seat, trusted by over a million parents to protect their child from birth to booster.

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Radian 3QXT

Travel Bag

Traverze Edition

Radian 2AXT

Platinum Edition

Our Story

Designed and engineered in the USA, we’re Made of Seattle, a city like no other. We believe in having it all, from the fast-paced digital-led metropolis to the surrounding mountainous landscape of adventure. Seattle’s unique cultural identity and pioneering spirit inspired the diono® difference way back in 1999, and it’s what continues to drive our innovation today.

Our commitment to child safety is not just driven by industry standards but by the need to always go above and beyond to deliver products that serve and protect. As we celebrate our 20th anniversary, we’re as passionate as ever to empower families to take to the road, travel far and feel confident that diono® safety will be with you for the Joy of the Journey.

Other Products

Radian 3RXT Car Seat Black

Radian 3RXT Car Seat Gray

Rainer 2AXT Car Seat Beige

Rainer 2AXT Car Seat Black

Diono Radian 3QX All in One Convertible Car Seat

The ultimate 3 across All-in-One car seat from birth to booster (4 - 120 lb / 1.8 - 54 kg). Featuring 4 stages of complete newborn protection and all new Diono Safe+™ engineering to provide the next generation in car seat safety.

From baby's first journey the radian® 3QXT provides complete newborn protection, with Safe+™ newborn travel high wedge, Safe+™ newborn protection insert, Safe+™ 2-in-1 infant positioning liner and Safe+™ newborn harness pads to provide a custom fit from birth.

As your child grows the Safe+™ steel anti-rebound increases stability and reduces rebound rotation by up to 50%, so you can keep them safely rear facing for longer, up to 50 lb (approx. 4 years old). 

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