Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Black Storm
Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Black Storm
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Diono

Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Black Storm

|37 ratings
Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Black StormDiono Radian 3R All in One Convertible Car Seat Rear and Forward Facing 10 Years 1 Car Seat Slim Fit 3 Across Black StormDiono Radian 3R Car SeatDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Blue SurgeDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Blue Razz IceDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Pink Cotton Candy
Actual ColorBlack Storm

Key item features

  • ‌All-in-One Convertible Car Seat: Designed to grow with your child through rear-facing, forward-facing and belt-positioning booster stages, providing one versatile car seat for multiple stages of childhood.
  • 10 Years, 1 Car Seat: Built for long-term use with a 10-year product lifespan, helping families get years of use from one thoughtfully designed car seat.
  • Slim 3-Across Design: The narrow, space-saving design helps fit three car seats across in many vehicles, making it ideal for growing families and shared back seats.
  • Steel Reinforced Protection: Built with a strong steel-reinforced frame and Side Impact Protection to provide added strength and protection for everyday rides.
  • FAA Approved for Air Travel: Approved for use on aircraft in rear-facing and forward-facing harness modes, making the Radian 3R a convenient choice for family travel. Booster mode is not approved for aircraft use.

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Customer ratings & reviews

4.6 out of 5 stars
stars
37 ratings9 reviews
How item rating is calculated
  1. 5 stars86% (32)
  2. 4 stars3% (1)
  3. 3 stars3% (1)
  4. 2 stars0% (0)
  5. 1 star8% (3)
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Showing 1-3 of 9 reviews

Apr 24, 2026
Reviewer name: patricia
Item details
Color: Pink Cotton Candy
Sold and shipped byDiono
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

We love this seat! It fits better, less bulky than regular car seats, can be used for a very long time. We have a 5yr old who has long legs, and weighs about 40 lbs and needed a different option than traditional seats have., the child can actually buckle herself in, with parental guidance. Cannot unbuckle without adult doing it. Straps are comfortable. Straps adjustable. Two cup holders that are positional. Easier to get seat buckled in right when placing in the vehicle. The child will be able to use until car seats no longer needed.

Helpful?5XVUZ548LTHK20860469680
Apr 23, 2026
Reviewer name: Mariah
Item details
Color: Pink Cotton Candy
Sold and shipped byDiono
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

best carseat

makes every other carseat look flimsy

Helpful?5XVUZ548LTHK20860469680
Apr 23, 2026
Reviewer name: Mariah
Item details
Color: Blue Surge
Sold and shipped byDiono
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

best carseat

makes every other carseat look flimsy

Helpful?5XVUZ548LTHK20860469680
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4.684210526315789 out of 5 stars
4.7 stars out of 5, based on 19 seller reviews(4.7)
Extended holiday returns
Free Holiday returns until Jan 31