The original 3-across, all-in-one car seat just got better. Upgraded with 18 improvements from the award-winning original Radian 3RXT, the Diono Radian 3RXT Safe Convertible Car Seat features Diono Safe engineering, Safe anti-rebound panel and advanced Safe side impact protection for complete protection from birth to booster.

The Radian 3RXT Safe adapts as your child grows from birth up to 120 lbs, making it the only seat they'll ever need. Plus, its slim fit design allows 3-across seating in most vehicles so you can accommodate all your little ones in ultra-safe and comfy car seats!