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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

    • Based on 7,711 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 8
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Style: Radian 3R Fits 3 Across


Color: Black Storm


Features

  • Includes Comfort Travel Kit featuring complimentary colored head support pillow, comfort cushion and 2 XL cup holders.
  • 10 Years One Car Seat - from Birth to Booster (5 - 120 lb) it's all you will need. Grows with your child, ultimate protection on every road trip. 4 modes in 1 seat!
  • Rear Facing for Longer - lovingly engineered to keep your child rear-facing up to 50 lb.
  • Fits 3-Across - our famous slim-fit design with zero compromises to safety, space, or comfort.
  • Mechanically engineered from reinforced automotive grade high-strength steel, our unique core shell shields and protects your child.
  • High-quality ComfortPlus Memory Foam, always included.
  • The original and only all-in-one convertible car seat that folds for travel or compact storage. FAA approved for airline use.

Brand: Diono


Installation Type: Latch


Material: Alloy Steel, Polypropylene, Plastic, Polystyrene


Color: Black Storm


Orientation: Convertible Seat


Product Dimensions: ‎16.1 x 16.9 x 28.4 inches


Item model number: ‎50640


Minimum weight recommendation: ‎5 Pounds


Maximum weight recommendation: ‎120 Pounds


Minimum height recommendation: ‎18.1 Inches


Maximum height recommendation: ‎57.1 Inches


Material Type: ‎Alloy Steel, Polypropylene, Plastic, Polystyrene


Material Composition: ‎95% Polyester, 5% Spandex


Care instructions: ‎Covers Machine wash cold, line dry. Shell and Components Spot clean


Number Of Items: ‎1


Style: ‎Radian 3R Fits 3 Across


Number of reclining positions: ‎1


Batteries required: ‎No


Orientation: ‎Convertible Seat


Rear-facing minimum child weight: ‎5 Pounds


Rear-facing maximum child weight: ‎50 Pounds


Forward-facing minimum child weight: ‎22 Pounds


Forward-facing maximum child weight: ‎120 Pounds


Harness type: ‎5-Point


Item Weight: ‎24 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Fits 2 in a row with additional infant seat in Toyota Camry!
Style: Radian 3R Fits 3 Across Color: Black Jet
We bought 2 of these to fit in the backseat of our 2010 Toyota Camry. 1 rear facing, middle forward facing, next to infant (Uppababy Mesa) seat. Middle forward facing was the only way it would fit. Pro’s: slim, sturdy, easy for our kids to get into themselves, latch system is easy/works well. Good customer service from Diono. Our first one didn’t have the rear-facing piece in the box. Cons: * Very heavy! * Tall backside. Check your car seat manual whether a car seat is allowed to touch/rest against the front seat (if rear facing). Now having moved one to the middle back seat (forward facing) on our Honda Odyssey, it sits higher and blocks the rearview a bit. Wasn’t an issue in the Camry. No cupholders- fine, since that wouldn’t fit anyway. Not as much padding, so perhaps less comfortable, but both our kids are fine in them. Overal conclusion: great car seat if you have a tight back seat! ... show more
Reviewed in the United States on February 12, 2025 by Esther
    • Favorite Car seat
This is my favorite car seat. I am soon going to have 3 under 3. I am planning on switching all car seat to this one. They fit in all 3 of our vehicles nicely and securely. (We have a SUV, Sudan, and Truck). Which we have had problems with other brands not being secure. They are really easy to move from car to car. They are a little heavy but I don’t find that to be a problem. I find there price to be very reasonable. I have fortunately been able to buy both of mine when they were on sale. ... show more
Reviewed in the United States on March 7, 2025 by Adri Palfreyman
    • Diono Radian 3R: A Safe and Space-Saving Car Seat for Long-Term Use
Style: Radian 3R Fits 3 Across Color: Gray Slate
We absolutely love our Diono Radian 3R! It's been a fantastic car seat for our child, lasting from infancy all the way to booster use. Here's why it gets 5 stars: Space-Saving Design: This car seat is a dream for tight spaces. Its slim design allows us to fit 3 car seats across our mid-size car, perfect for families with multiple children. Long-Lasting Value: This car seat truly grows with your child. It transitions seamlessly from rear-facing for newborns (up to 50 lbs) to forward-facing (up to 100 lbs) and then to a booster seat (up to 120 lbs). It's a one-time investment that lasts for years. Comfort & Safety: Our child finds the Radian 3R very comfortable, with breathable fabric and a well-padded design. Plus, Diono's safety record and features like the steel-reinforced frame give us peace of mind. Easy to Use: Installation with SuperLatch was a breeze, and switching between rear-facing and forward-facing is simple. The harness is easy to adjust and the removable cup holders are a convenient touch. Easy to Clean: The Diono Radian 3R's machine-washable fabrics make cleaning up spills and messes a breeze. If you're looking for a convertible car seat that's safe, space-saving, comfortable, and built to last, the Diono Radian 3R is an excellent choice! ... show more
Reviewed in the United States on July 18, 2024 by M. Masters
    • Lots of bang for your buck
This is a very sturdy car seat. It is also the only car seat that I have seen that folds for storage. It is great for small children but large enough for older children. My 7 year old even fits comfortably. It is a great seat that will last many years!
Reviewed in the United States on February 28, 2025 by SDigs
    • Durable
Review Image by Loren Ventura Loren Ventura
My daughter is 42inches, 36lbs- 5 years old pictured here. We bought this car seat with the idea that i wanted a slim durable seat that my daughter could grow in to and have for a long period of time. Pros: • Narrow design, great for tight spaces • Comfortable without the need for extra padding • Minimalistic but feels very secure • Steel frame provides added safety Cons: • Quite heavy, not ideal for travel • Tall and wide when rear-facing, limits front seat adjustment (not pictured here) • Adjusting the shoulder height requires uninstalling the seat, which is inconvenient • Not versatile for use with multiple kids due to the need for frequent rethreading of the harness Overall, it’s a solid choice for safety and comfort but better suited for a dedicated setup rather than frequent switching or travel. ... show more
Reviewed in the United States on January 6, 2025 by Loren Ventura Loren Ventura
    • Amazing carseat!
Style: Radian 3R Fits 3 Across Color: Black Jet
Review Image by Jarett Sisk Jarett Sisk
We have two of these carseats now and absolutely love them. They are slim and provide a lot of room for both the child using the carseat and the person sitting next to the car seat. I love how these carseats feel open and not so enclosed for the child. The car seat itself is very easy to install correctly and the cover is easily removable and reattachable for easy cleaning. The padding is great and it feels really secure and has great stability. Overall great quality. The only thing I wish that was different, is i wish these came with at least one cup holder. These are the only carseats I love to use for forward facing kids! ... show more
Reviewed in the United States on November 7, 2024 by Jarett Sisk Jarett Sisk
    • Love!
Love this brand of car seat. The safety aspect is why I went this brand, love that it’s narrow and you can fit 3 across. Cleaning this car seat is a breeze, the cover comes off for it to be washed. I have 2 of this exact one and then a high back booster of the same brand. Great quality car seats, easy to install, easy to clean. Highly recommend this brand to anyone with littles. ... show more
Reviewed in the United States on February 19, 2025 by Kylie
    • Very very sturdy and strong probably one of the best on the market
Style: Radian 3R SafePlus Fits 3 Across Color: Blue Razz Ice
Love the seats after having a car accident we decided to go for a much stronger and sturdier seat and this came in at top of the list they fold nice and flat for traveling on planes and things but just be prepared they are very very very heavy so would be hard to carry around a airport with child in arms also a little hard to instal but well worth it in the end love all the cool colors u can also choose from ... show more
Reviewed in the United States on March 27, 2025 by olivia robert

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