The ultimate 3 across All-in-One car seat from birth to booster (1.8 – 54 kg / 4 – 120 lb). Featuring 4 stages of complete newborn protection and all-new Diono Safe+™ engineering to provide the next generation in car seat safety.
4 STAGE COMPLETE NEWBORN PROTECTION
Features 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.
DIONO SAFE+ ENGINEERING
radian® 3QXT is subjected to a combination of the most rigorous crash tests; front, rear, and side impacts, and rollover test to make sure we have the safest seat possible.
10 YEARS ONE CAR SEAT
With 5 ways to travel from birth to booster, the radian® 3QXT adapts as your child grows to offer a custom fit from birth up to 54 kg / 120 lb.
REAR-FACING FOR LONGER
Designed and engineered with all new Diono Safe+™ protection. Now you can keep your child rear-facing for even longer up to 22.7 kg / 50 lb (approx. 4 years old).
SLIM-FIT DESIGN FITS 3 ACROSS
Built with our famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
1.8-22.7 kg / 4-50 lbs
10-29.5 kg / 22-65 lbs
18-54 kg / 40-120 lbs
Seated torso height
19-42 cm / 7.5-16.5″
Overall maximum height
144.8 cm / up to 57″ /
11.7 kg / 25.8 lbs
- Safe+™ newborn protection insert
Made from energy absorbing materials to support and protect. Super soft padding for extra newborn comfort. Simply remove as baby grows.
- Safe+™ newborn travel high wedge
Creates near lie-flat travel position for newborns while reducing head slump and helping to keep airways open. Simply remove as baby grows.
- Safe+™ 2-in-1 infant positioning liner
Gives extra infant comfort and toddler body support. Simply remove as baby grows.
- Safe+™ newborn harness pads
Small newborn harness pads for added safety and comfort.
Key product features and benefits
Safe+™ steel anti-rebound bar
One click connection to the seat base. Reduces rebound rotation by 50% in the event of a collision. Also provides more legroom when rear-facing.
The new radian® 3QX is subjected to a combination of the most rigorous crash tests including rollover testing to make sure we have the safest seat possible.
Safe+™ steel core
All new upgraded steel core. Made from automotive grade high strength steel to shield and protect.
Engineered with the latest European Side Impact technology to improve child head containment in the event of a collision. Headrest height is increased by 22% from radian R series
SAFE+™ SIDE IMPACT PROTECTION
Featuring 6 layers of interlocking EPS & EPP foam, high density plastic and steel reinforcement to create ultimate side impact protection without compromising 3 across fit.