the original all-in-one convertible car seat designed to fit 3 across and with our famous steel core inside for optimum safety. Now rear facing for even longer (up to 50 lb.) and featuring all new head support infant insert, expect 10 years of safety from just one car seat.

the radian® 3rx head support infant insert features padded support for cocooned comfort. Then as your infant grows simply remove and keep your precious cargo rear facing for even longer up to 50 lb (approx. 4 years old).

built with a mechanically engineered, reinforced steel core, made from automotive grade high strength steel, the radian® 3rx is always ready to shield and protect. And when your family grows, the slim fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort.

as travel experts, diono have naturally built in super portable features to the radian® 3rx with original fold for easy transport and storage and steel reinforced cup holders to store essential road trip drinks and snacks. The radian® is also aircraft certified (faa approved), so you can take safety with you wherever you go.

features:

10 years 1 car seat - with 4 ways to travel from birth to booster, the radian® 3rxt adapts as your child grows to offer a custom fit from birth up to 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.
rear facing for longer - designed and engineered to keep your child rear facing even longer up to 50 lb (approx. 4 years old).
head support infant insert - the removable head support infant insert features padded support for cocooned comfort. Then as your infant grows simply remove..
steel core - mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.

dimensions: