Unmatched safety. All-in-one simplicity.
Your child’s security is our top priority. We engineered our radian® 3rXT with premium, innovative features like a steel alloy frame, aluminum reinforced sidewalls, energy absorbing EPS foam and a reinforced adjustable head support to keep your little one protected and comfortable.
Some say three’s a crowd. We say, the more the merrier! Our radian® 3rXT car seats fit 3-across in most mid-size vehicles.
The radian® 3rXT keeps children comfortably rear-facing from 5-45 pounds (2.2-20.4 kgs) for the safest possible position. Premium, plush head and body support cushions are included for newborns and infants.
Room to grow
Accommodates forward-facing children up to 65 pounds (29.5 kgs) in a 5-point harness and converts to booster mode for kids 50-120 pounds (22.7-54.5 kgs). The aluminum reinforced, adjustable head support and sidewalls provide additional side impact protection.
Worth the Weight
Our convertible car seats are made from steel for safety you can feel. The fully integrated steel frame is wrapped in thick engineered plastic to withstand severe crash forces. Deep, aluminum reinforced sidewalls provide excellent side impact protection, while energy absorbing EPS foam surrounds your child for ultimate safety. Diono car seats are definitely worth the weight.
Our unique SuperLATCH™ system makes installation easy and secure. An audible click and visual indicator let you know when the connectors are locked.
Side Impact Protection
We’ve got your child’s safety covered. Radian® 3 rXT seats feature deep, aluminum reinforced sidewalls that extend straight forward and are lined with thick, energy absorbing foam. We performed rigorous side impact testing to achieve the proper size, shape and strength that best protects children from side impact forces.
Our patented Safe Stop® harness component is a load-limiting device that absorbs energy in a crash. The unique design offers an additional layer of protection by reducing impact to a smaller, forward-facing child.
As safety experts, we think of every precaution. Rear-facing tether capability helps reduce seat rotation during an impact. This unique feature is not found on every car seat. We built it in here for an extra layer of protection when your child is rear-facing.