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Our Montreal store will close July 21 to August 4. Online Store Will Stay Open.
Our Montreal store will close July 21 to August 4. Online Store Will Stay Open.



Diono Radian® 3QXT® FirstClass™ SafePlus™

by Diono®

Original price $487.00 - Original price $487.00
Original price
$487.00 - $487.00
Current price $487.00
Color: Black Jet
Manufacture SKU: 53000
SKU 210000036535

Introducing the luxury 3 across All-in-One Car Seat for first class travel from birth to booster suitable from 1.8 - 54 kg / 4 - 120 lb. Diono Radian® 3QXT® FirstClass™ SafePlus™ features SafePlus™ engineering, exclusive premium fashion and Safe+® 2-in-1 anti-rebound panel and adjustable calf support for the very best in safety, comfort and style.


  • LUXURY TRAVEL FROM BIRTH TO BOOSTER - From rear-facing to forward facing Radian® 3QXT® FirstClass™ SafePlus™ adapts as your child grows for 10 years of first-class travel from birth to booster. Suitable from 1.8 - 54 kg.
  • SAFEPLUS™ 2-IN-1 ANTI-REBOUND PANEL AND ADJUSTABLE CALF SUPPORT - 1. Anti-rebound panel increases stability when rear-facing and reduces rebound rotation by up to 50%. 2. Adjustable calf support and comfort liner provides additional comfort as they transition to forward-facing.
  • SAFEPLUS™ ENGINEERING - Features a unique combination of engineering features and testing to the highest safety standards to ensure the safest seat possible.
  • EXCLUSIVE PREMIUM FASHION - Designed with mesh panels and premium fabrics. Easy remove and machine washable for comfort, convenience and style All-in-One.
  • THE ORIGINAL RADIAN® 3 ACROSS: Built with our famous Radian® slim fit convertible design for a 3-across option only with Diono Radian® combinations, without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
  • Includes 2 x XL Cup holders & Car Seat Protector.

CANADA: Shipping to Quebec and Ontario takes 1 to 2 business days. Shipping to the rest of Canada takes between 1 to 7 business days, relative to your distance from Montreal. Free shipping over 50$*. Exceptions apply to large items like cribs, mattresses and daycare furniture.

USA: Shipping to United States takes 2 to 7 business days, relative to your distance from Montreal. Free shipping over 100$* Exceptions apply to large items like cribs, mattresses and daycare furniture.

INTERNATIONAL: International shipments take 3 to 10 business days.

If a product arrives defected or not as described, we will replace it at no extra cost to you.

Returns or exchange for sizing will be at no extra cost to the buyer.

If the return or exchange is for any other reason, we will ask the buyer to pay for the return shipping. We do not accept returns for open boxes. If a product is defected we will help you make a warranty claim. All our products are protected with a limited warranty.

For more information, see our return policy.

Every product comes with it's own warranty. Once a product is removed from its original packaging, the buyer must contact the manufacturer directly to make a warranty claim. All our suppliers are reputable Canadian brands with good warranty policies.

Warranty's do not apply for clothing and shoes.

Customer Reviews

Based on 10 reviews
review f.d.
Great Car Seat

I purchased one of this for my one year old baby. I can feel that she is very comfortable with the car seat and she cry less than before when we are driving. The cushions are of great quality. It is very easy to assemble. I just hope that you put whats included with the product on your ad/website online. Because i thought it wouldnt come with the Read more about review stating Great Car Seatrear facing base so i purchased an extra. Now i have to send it back. And its a little bit of a hassle.

review f.d.

We’re so excited for our little ones arrival and to be able to use our new car seat. It came highly recommended from friends and we know it’s going to work perfect!

review f.d.
Thank you !

Thank you I literally feel like my daughter couldn’t be in a better car seat she and I fell like she’s so protected♥️

review f.d.
Radian 3QXT+ is a beast!

purchased 2 of these, one for each car- and it feels so heavy duty. My baby has always been in the 99th percentile and outgrew his newborn seat by about 6 months. He used to scream and be soaking wet from overheating in his newborn seat. I switched him to this one, and I am no longer afraid to drive with him. He is much more comfortable, does not Read more about review stating Radian 3QXT+ is a beast!sweat in the seat, and is overall happy in it. The seat is well constructed and feels so safe.

review f.d.
Total Comfort for older kids

I bought the 3QXT+ as I was looking for a car seat with a leg rest and at the same time protect my kid. This is perfect for my 6 year old and now looks forward with his legs not dangling during long car rides and wanting to take uninterrupted comfy naps. This is a game changer! I love all the extras that came with it and the added features of memoRead more about review stating Total Comfort for older kidsry foam seating and option to widen the seat, the mat to place underneath and the cup holders were really appreciated and well thought of, for such a heavy duty car seat. This is a great piece of investment that will grow with our child.


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