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$269.99
FREE delivery October 29 - November 3. Details
Only 11 left in stock - order soon.
$$269.99 () Includes selected options. Includes initial monthly payment and selected options. Details
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Return policy: Extended holiday return window till Jan 31, 2022
For the 2021 holiday season, returnable items purchased between October 1 and December 31 can be returned until January 31, 2022. You may receive a partial or no refund on used, damaged or materially different returns.
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3 Year Baby Protection Plan

from Asurion, LLC
  • NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
  • COVERAGE: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
  • PRODUCT ELIGIBILITY: Plans cover products purchased in the last 30 days.
  • EASY CLAIMS PROCESS: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.

2 Year Baby Protection Plan

from Asurion, LLC
  • NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
  • COVERAGE: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
  • PRODUCT ELIGIBILITY: Plans cover products purchased in the last 30 days.
  • EASY CLAIMS PROCESS: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
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Diono Radian 3RX 3-in-1 Rear and Forward Facing Convertible Car Seat, Head Support Infant Insert, 10 Years 1 Car Seat Ultimate Safety and Protection, Slim Design - Fits 3 Across, Jet Black

4.7 out of 5 stars 250 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Convertible Child Safety Car Seats by Diono

Price: $269.99
2020
Black Jet

Enhance your purchase

Brand Diono
Installation Type Latch
Material Alloy Steel
Color Black Jet
Orientation Convertible Seat

About this item

  • REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb, 22. 7 kg, approx. 4 years old
  • HEAD SUPPORT INFANT INSERT: The removable head support infant insert features protective padded support for cocooned comfort, As your infant grows simply remove the car seat cushion pad
  • 10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the radian 3RX adapts as your child grows to offer a custom adjustable fit from birth to 120 lbs
  • REINFORCED STEEL CORE: Mechanically engineered, reinforced steel core, made from automotive grade high density plastic and steel to create the ultimate protection for your child
  • THE ORIGINAL 3 ACROSS: Built with our famous radian slim fit convertible design, to fit 3 across in most vehicles without compromising child or passenger comfort, Feel safe having your children secure in the backseat
See more product details

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Frequently bought together

  • Diono Radian 3RX 3-in-1 Rear and Forward Facing Convertible Car Seat, Head Support Infant Insert, 10 Years 1 Car Seat Ultimat
  • +
  • Diono Ultra Mat Pack Full Size Car Seat Protectors For Under Car Seat, Crash Tested With Premium Ultra Thick Padding For Dura
  • +
  • Diono Radian 3R, 3-in-1 Convertible Rear & Forward Facing Convertible Car Seat, High-Back Booster, 10 Years 1 Car Seat, Slim
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From the manufacturer

radian 3RX
10 years one car seat
radian 2020
slim fit car seat 3 across
rear-facing for longer

Compare with similar items


Diono Radian 3RX 3-in-1 Rear and Forward Facing Convertible Car Seat, Head Support Infant Insert, 10 Years 1 Car Seat Ultimate Safety and Protection, Slim Design - Fits 3 Across, Jet Black
Diono Radian 3R, 3-in-1 Convertible Rear & Forward Facing Convertible Car Seat, High-Back Booster, 10 Years 1 Car Seat, Slim Design - Fits 3 Across, Black Jet
Diono Radian 3RXT, 4-in-1 Convertible Extended Rear and Forward Facing Convertible Car Seat, Steel Core, 10 Years 1 Car Seat, Ultimate Safety and Protection, Slim Design - Fits 3 Across, Jet Black
Diono Radian 3RX 3-in-1 Rear and Forward Facing Convertible Car Seat, Adjustable Head Support & Infant Insert, 10 Years 1 Car Seat Ultimate Safety and Protection, Slim Fit 3 Across, Jet Black
Diono Radian 3QX 4-in-1 Rear & Forward Facing Convertible Car Seat | Safe+ Engineering 3 Stage Infant Protection, 10 Years 1 Car Seat, Ultimate Protection | Slim Design - Fits 3 Across, Yellow Mineral
Diono Radian 3QXT 4-in-1 Rear and Forward Facing Convertible Car Seat, Safe Plus Engineering, 4 Stage Infant Protection, 10 Years 1 Car Seat, Slim Design - Fits 3 Across, Jet Black
Customer Rating 4.7 out of 5 stars (250) 4.8 out of 5 stars (2592) 4.7 out of 5 stars (2208) 4.6 out of 5 stars (37) 4.6 out of 5 stars (397) 4.6 out of 5 stars (438)
Price $269.99 $190.59 $258.99 $237.77 $351.49 $399.99
Sold By CapitalKidz Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com
Brand Name Diono Diono Diono Diono Diono Diono
Color Black Jet Black Jet Black Jet Black Jet Yellow Mineral Black Jet
Item Dimensions 16 x 17 x 28.5 inches 16 x 17 x 28.5 inches 16 x 17 x 28.5 inches 16 x 17 x 28.5 inches 16 x 17 x 28.5 inches 16 x 17 x 28.5 inches
Size 1 Count (Pack of 1) 16 x 17 x 28.5 Inch (Pack of 1) 1 Count (Pack of 1) 16x7x28.5 Inch (Pack of 1) 1 Count (Pack of 1)

Product description

Style:2020  |  Color:Black Jet

The original All-in-One convertible car seat designed to fit 3 across and with our famous steel core inside for optimum safety. Now rear-facing for even longer up to 50 lb, 22.7 kg. and featuring all new head support infant insert, expect 10 years of safety from just one car seat. The 2020 Radian 3RX head support infant insert features padded support for cocooned comfort. Then as your infant grows simply remove and keep your precious cargo rear facing for even longer up to 50 lb, 22.7 kg approx. 4 years old. Built with a mechanically engineered, reinforced steel core, made from automotive grade high strength steel, the Radian 3RX is always ready to shield and protect. And when your family grows, the slim fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. As travel experts, Diono have naturally built in super portable features to the Radian 3RX with original fold for easy transport and storage and steel reinforced cup holders to store essential road trip drinks and snacks. The Radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

Product information

Style:2020  |  Color:Black Jet

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
250 global ratings
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Top reviews from the United States

Reviewed in the United States on June 27, 2020
Style: 2020Color: Blue SkyVerified Purchase
5 people found this helpful
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Reviewed in the United States on October 3, 2020
Style: 2020Color: Blue SkyVerified Purchase
4 people found this helpful
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Reviewed in the United States on September 10, 2020
Style: 2020Color: Red CherryVerified Purchase
2 people found this helpful
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Reviewed in the United States on October 1, 2020
Style: 2020Color: Black JetVerified Purchase
One person found this helpful
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Reviewed in the United States on December 31, 2020
Style: 2020Color: Blue SkyVerified Purchase
One person found this helpful
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Reviewed in the United States on September 21, 2020
Style: 2020Color: Gray SlateVerified Purchase
Reviewed in the United States on September 19, 2020
Style: 2020Color: Black JetVerified Purchase
2 people found this helpful
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Reviewed in the United States on August 31, 2021
Style: 2020Color: Gray SlateVerified Purchase

Top reviews from other countries

Keren
4.0 out of 5 stars Very nice!
Reviewed in Canada on January 18, 2021
Style: 2020Color: Black JetVerified Purchase
One person found this helpful
Report abuse
Jaana
5.0 out of 5 stars Good for 10 years!!!!
Reviewed in Canada on September 21, 2020
Verified Purchase
Al. Mo.
5.0 out of 5 stars Great for my son
Reviewed in Canada on May 24, 2020
Style: 2020Color: Gray SlateVerified Purchase
One person found this helpful
Report abuse
Mk
5.0 out of 5 stars Super rien a dire !!
Reviewed in Canada on January 2, 2021
Verified Purchase
Amber
5.0 out of 5 stars Best carseat handsdown
Reviewed in Canada on August 23, 2020
Verified Purchase