Diono understands what family life is all about, that’s why they've thoughtfully designed their products with that in mind. The Radian 3 RX is lovingly engineered with a full steel frame and aluminum reinforced sides to maximize protection. The Superlatch system makes installation quick and easy and the memory foam cushioning, padded harness and specifically angled cup holder help to keep your little one happy on life’s short or long journeys. Our low profile sides make life easy for you to board your child in the seat. Safety and functionality are always at the forefront of what we do; making sure that your little one will remain secure, comfortable and happy wherever life takes you. Diono thought of everything so you don’t have to.


  • SOLID SIDE PROTECTION - Additional side impact protection with aluminum reinforced head support and energy absorbing EPS foam

  • THREE’S NOT A CROWD- Sleek design allows for a 3-across fit (in most mid sized vehicles).

  • ALL ABOARD - Easy boarding low profile – it’s the little things that make life simpler

  • TRAVEL THE WORLD - Super portable, folds flat with available carry straps for easy travel and transporting with ease

  • STYLISH AND SNUG - Modern, versatile cover in soft, premium fabric for a comfortable ride everyday – it’s absorbent, easy to remove and machine washable too!

  • PROPER FIT - Secure the littlest bundles of joy in our premium head and body support – for their very first journey out in the world.

  • EASY INSTALLATION - SuperLATCH system makes installation quick and easy. A versatile top tether for both rear and forward-facing, unique to car seats.

  • LONGER LIFE SPAN - 10 year product life span from date of purchase.

This product is final sale! No exchanges or returns.

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