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Diono Radian 3R All-in-One Convertible Car Seat, Slim Fit 3 Across

<ul><li><strong>Extended Child Safety</strong>: Supports rear-facing use for children up to 54 kg and functions from birth to booster (2.3 - 54 kg) for 10 years of use.</li><li><strong>Robust Protection</strong>: Features a mechanically engineered, reinforced automotive-grade high-strength steel frame, aluminum-reinforced sides, and thick energy-absorbing foam.</li><li><strong>Space-Saving Design</strong>: Slim-fit design allows for 3-across installation in most vehicles.</li><li><strong>Travel Convenience</strong>: The car seat folds for travel or compact storage and is FAA approved for airline use.</li><li><strong>Simplified Installation</strong>: Includes SuperLATCH with Audible Click system for secure installation.</li></ul>

Converts to Belt Positioning<br><ul><li>10 Years One Car Seat - from Birth to Booster (2.3 - 54 kg) it's all you will need. Grows with your child, ultimate protection on every road trip. 4 modes in 1 seat</li><li>Rear-Facing for Longer - lovingly engineered to keep your child rear-facing up to 54 kg</li><li>Fits 3-Across - our famous slim-fit design with zero compromises to safety, space, or comfort</li><li>Mechanically engineered from reinforced automotive grade high-strength steel, our unique core shell shields and protects your child</li><li>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</li><li>Comfort Support - head support pillow, comfort cushion and 2 XL cup holders. Additional features are exclusive to the following colorways: Black Storm, Blue Surge, Blue Razz Ice, Purple Wildberry and Pink Cotton Candy</li></ul>

Safety Harness Style

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The Diono Radian 3R is the original slim fit 3 across all-in-one car seat, designed to protect from baby to booster seat (2.3 - 54 kg). Lovingly engineered with the famous Diono steel-reinforced frame and now rear-facing for even longer, expect 10 years of safety from just one car seat. Designed and engineered with complete rear-facing protection, so you can keep them in a rear-facing convertible car seat for longer, up to 22.7 kg. Built with a mechanically engineered, reinforced steel frame, and made from automotive-grade high-strength steel, the Radian is always ready to shield and protect. The Radian 3R also includes aluminum-reinforced sides and thick energy-absorbing foam which distributes crash forces for added protection. And when your family grows, the slim-fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. The Radian 3R features our SuperLATCH with Audible Click system, which makes installation easy and super secure with an audible click that lets you know when connectors are locked in safe. Coming in a range of bold colors, there is a Radian 3R that suits every child, and for added parent convenience, the Radian 3R cover is hard-wearing and easily removable. So, when the next journey gets messy, easily remove to machine wash. As travel car seat experts, Diono has built-in super portable and convenient features to the Radian 3R, with original fold for easy transport and storage, and easily removable machine washable covers. The Radian 3R is also conveniently aircraft-certified (FAA approved) so you can take safety with you wherever you go.

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Protect it today, enjoy it for years - plan covers:<br><br>• Mechanical and electrical failures<br>• Breakdowns or failures from normal use<br>• 24/7 virtual tech support and Fast online claims backed by our 3-Business-Day Service Guarantee<br>• Includes 100% parts, labour and shipping - no deductibles

Notice for Quebec Customers<br><br>Protect it today, enjoy it for years.<br>Get low-cost, great value protection that goes beyond the manufacturer’s warranty, keeping your product covered when you need it most.<br><br>Protection covers:<br>• Mechanical and electrical failures.<br>• Defects in workmanship and materials from normal use.<br>• Fast, easy online claims backed by our 3-Business-Day Service Guarantee.<br>• 100% coverage for parts, labour and shipping - no deductibles or additional cost (pay $0 for approved claims).<br><br>How the Plan works:<br>1. Add a Plan to your order.<br>2. Plan details will be emailed to you after completing your purchase.<br>3. Start a claim online anytime or by phone.<br>We’ve got you covered up to the amount you paid, whether it’s a replacement, a refund or repairs.<br><br>You can cancel within 90 days of purchase for a hassle-free refund, according to your plan terms.<br>Limitations and exclusions apply. For more details, view the terms and conditions.

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Actual Color

Black Jet

Blue Sky

Gray Slate

Pink Blossom

Red Cherry

Ease Of Installation

Sturdiness

Price

Comfort

Cup Holders

Sleekiness

Straps

Instructions

Slimness

Construction

Padding

Adjusting

Value

Storage

Safety

Design

Support

Features a comfortable seating arrangement for kids.

Made with a heavy and solid construction.

Offers significant savings compared to others.

We just bought a new Odyssey Honda van and needed three car seats and this worked perfect we bought one to see if it would fit. It does well and we are buying two more very very pleased.

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Excellent car seat, slender but with somehow more space for comfort of your child. Their is so much more room in the car, no bulky cup holders, no extra bits to clean.

Excellent Product

This is so comfortable for my three year old and perfect for small backseats - we have three kids and this was a must. I think it can be used rear facing but we didn't need that - we live diono and have the slim high back belt booster for my son! They are both less than 16.5 in wide or so!

BUY it!

We have five kids to transport, two rear-facing, the rest in boosters. We need every seat in the SUV. When we transitioned baby from infant to convertible, I tried the Graco Slim fit, and it was too big. This seat fit easily, no problems. So middle row is backless booster, diono, and graco extend to fit.  So glad these are affordable now. Happy with it overall. Baby gets really mad when his caseworker has to transport him in the infant seat now that he's experienced the diono. He likes his big boy seat!

3 across Acura MDX

I will start by saying we LOVE this slender seat. If you're looking for something that is safe but yet minimal this is the seat! 

(((( I want to plug this in here because I know when you have a smaller vehicle you have to do your research to find seats that fit-
I have a 2018 Toyota Tacoma 4 door. I am 5'4” and my husband is 5'10”.))))

My almost 4 year old was not at all pleased with any of her convertible seats and I was over hearing those complaints. The design of convertible seats always guide little legs/feet to go up and straight out forcing feet on the back of the front seats. Convertible seats are so darn bulky. 

With the Diono she can now climb into her own seat! Big sister can now comfortably ride in the middle.. the Diono fits in the middle seat too. There is space to comfortably have 2 other kids or 2 adults next to this seat. It's seriously doesn't take up any extra space at all! It seems like it's just a manufacture add-on to the vehicles seat. It looks almost like an aftermarket 5 point harness adult seat (but mini). It's narrow, sleek and awesome! 

I was told these are notoriously hard to install so I  fueled up on some carbs and was prepared to get a good sweat on... but it was super easy to install forward facing with the seat belt (phew). 

If you're going to be rear facing you would have to install in the middle. I wouldn't use this seat for a newborn. 

We did purchase two cup holders but if you want you can order 4 cup holders. My little isn't the biggest fan of the large chest clip pads but she forgot about them after 2-3 car rides.

Yes!

Samsclub.com

These are slim and fit perfect in my third row and leave enough room for adult to set in middle of 2 of them with no issues

Good carseat! Slim, I can now easily fit 3 kids in the back of my sedan. Can be tricky to install but watching videos helped. It's heavy due to a steel frame but it also seems very sturdy. Folding is a nice feature for storage!

Good for needing to fit 3 car seats in a row

Really good seat. My daughter tends to sleep on long drives and this allows her the comfort to do that. Checks all my boxes on safety, comfort and ease of assembly. I'm certain she'll have this till she transitions out of car seats

Checks all my boxes!

This is the first Diono we've owned and I wish I would have bought this brand for my older kids when they were younger. It's very sturdy. My toddler loves it and he's picky with car seats. The cushioning is so soft I just added the inserts for extra support. The seatbelt is very smooth to put on, adjust, and take off. The seat is not bulky and clunky like the one we had before. I honestly love this car seat it's absolutely perfect.

Best car seat we've had

Would highly recommend. Easy to install and the straps tighten so easily. I've owned Graco, Evenflo and Britax and would choose Dione all day long for forward facing. Perfect to seat 3 across in our 2022 Hyundai Santa Fe. Have only tried forward facing so cannot comment on rear facing.

Easy install. Forward facing. Fits 3 across.

Car seat was missing the anchor strapes to properly install in my vehicle i call to complain and was told the seat didnt come with them, funny it shows on the side of the seat instalation with the anchors. I bought the pink seat, but 6 months ago also purchesed the same seats in black both of which came with the anchor straps...

Missing pieces

Diono Radian 3R All-in-One Convertible Car Seat, Slim Fit 3 Across

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