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 / 22.7 kg) and featuring all new head support infant insert, expect 10 years of safety from just one car seat.

• 10 YEARS – 1 CAR SEAT Built from high quality materials and versatile design for growing children, the Radian 3 provides 10 years of service.
• THE ORIGINAL 3 ACROSS Radian 3RX features a slimline, space saving design at only 17in wide, that allows you to install three across in most vehicles.
• DIONO STEEL CORE Engineered with the famous Diono full steel core for safety you can feel. This high-strength core has inherent integrity and forms an unyielding structure to shield and protect your little one.
• REAR-FACING FOR EVEN LONGER With extended rear-facing from birth up to 50lb / 22.7 kg to keep your child in the safest travel position for as long as possible.
• SOLID SIDE IMPACT PROTECTION Aluminium reinforced sides and thick energy absorbing foam distributes crash forces.
• HEAD SUPPORT INFANT INSERT The removable head support infant insert features padded support for cocooned comfort. Then as your infant grows simply remove.
• EASY REMOVE COVERS Radian 3RX features easy remove covers. So when the next journey gets messy, easily remove to machine wash.
• TRAVEL READY Radian car seats are super portable and fold flat for easy travel. They are also FAA Approved and certified for use on aircraft!
• SUPERLATCH™ INSTALLATION Our SuperLATCH™ system makes installation easy and super secure. An audible click lets you know when connectors are locked in safe.