To Top
Cart 0
The item(s) you want to add may not be available for purchase from your Wish List in the future. Consider purchasing the item(s) now, and check your local store if we are out of stock online.
Do you still want to add these items to your Wish List?

Diono Radian RXT Convertible Car Seat - Rugby

More Images

Diono Radian RXT Convertible Car Seat - Rugby - Diono  - Babies"R"Us
Diono Radian RXT Convertible Car Seat - Rugby - Diono  - Babies"R"Us
Diono Radian RXT Convertible Car Seat - Rugby - Diono  - Babies"R"Us
Diono Radian RXT Convertible Car Seat - Rugby - Diono  - Babies"R"Us
See Larger image

  • $339.99
  • $271.99
  • Ship-To-Home
  • Free Store Pickup Available in 5-10 days: Select a store
The item is unavailable and cannot be added to your cart.
Please make a selection to add to registry.
Add To Registry
Please make a selection to add to wish list.
Add To Wishlist

Usually leaves warehouse in 1 - 2 full bus. days. Details

Protect it

Choose a Buyer Protection Plan: Details

  • +$59.99
  • +$52.99
  • +$34.99

Layaway  Learn More

Add to Layaway Cart

Things to Know

  • This Item is included in our Car Seat Finder Comparison Tool
  • Gift wrap is not available for this item.

  • Gift givers, please note that this item may be shipped in the manufacturer's original packaging, which may reveal what's inside.

  • Product is not available for shipping internationally. (Details)

  • This item is sold in our stores. Please check your local store for availability.

Special Offers

TOTALLY FREE SHIPPING on ALL baby gear! - (See all gear items)
FREE Shipping on ANY purchase of $49 or more. Surcharges may apply on heavy/large items - Free Shipping (Details)

Related Products

Bright Starts Petal Pusher Carrier Toy Bar - Bright Starts  - Babies"R"Us

Babies R Us Car Seat Travel Bag - Babies R Us  - Babies"R"Us

JJ Cole Head Support - Graphite - JJ Cole Collections  - Babies"R"Us

Brica Stretch-to-Fit Sun Shade - Brica  - Babies"R"Us

Safety 1st Baby On Board Car Magnet - Safety 1st  - Babies"R"Us


Thanks to a versatile design, the Diono RadianRXT Birth to Booster Car Seat could be the only seat you'll ever need. With its adjustable features, this seat can safely accommodate children from birth until they have grown to 120 pounds and 57 inches tall. The RadianRXT is designed with your child's security and safety as top priorities. Premium materials and thoughtful safety features like a steel alloy frame, aluminum reinforced side walls, energy absorbing EPS foam, a five-point harness, and adjustable head support keep your mind at ease as your little one stays safe and sound.

  • Seat features three modes to accommodate growing children
  • Designed with a steel alloy frame and energy absorbing EPS foam
  • Reinforced head support for additional side impact protection
  • Easy-to-clean cover is soft against child's skin
  • Memory foam padding for extra comfort
  • SuperLATCH for a secure installation
  • Five-point harness provides dependable security
  • Infant support cushions keep your baby positioned correctly
  • Approved for use on airplanes
  • Age/Weight Requirements: 5 - 45 pounds rear-facing; 20 - 80 pounds forward-facing. Booster mode fits children weighing up to 120 pounds or up to 57 inches tall
  • Assembly Requirements: Some assembly required
  • Warranty: One-year limited warranty

Included in the Box

RadianRXT Rugby Birth to Booster Car Seat, rear-facing base, infant support cushions, SafeStop harness, rear-facing tether connector strap, one cup holder, and instruction manual.

*For vehicles manufactured AFTER September 2005. For vehicles manufactured prior to September 2005, consult the vehicle owner's manual for lower anchor weight limits.

Trademark Information:

RadianRXT Convertible plus Booster Car Seat (Rugby) Product Image


Steel Alloy Frame

Steel Alloy Frame Padded with EPS Foam Protects Your Child

The RadianRXT features a steel alloy frame for a strong foundation. Aluminum reinforced side walls and head support are lined with thick, energy absorbing EPS foam for side impact protection. The SafeStop energy absorbing harness provides extra protection for children 20 to 40 pounds. When installed, the harness's bungee-like energy absorption reduces impact when your child is seated in the forward-facing position. Additionally, the RadianRXT boasts rear-facing tether capability to reduce seat rotation in the event of an impact.

Accomodates Growing Children

Versatile Seat Grows With Your Child

The RadianRXT offers the adaptability you need to keep your child's car rides safe and comfortable. The seat fits children in the rear-facing position from 5 to 45 pounds and from 20 to 80 pounds in the forward-facing position. An adjustable, reinforced head support with 12 height settings ensures a custom fit and offers additional side impact safety. With longevity in mind, this model converts to a booster seat for kids up to 120 pounds.

Rear-Facing Position

Deep Seat Design and Plush Cover for a Comfy Ride

All Radian seats have a deep shell to cradle your child for a more comfortable rear-facing ride and to provide a higher rear-facing capacity. A plush cloth surface feels soft against your little one's skin. Expandable sides and a longer seat bottom offer better leg support and help keep children cradled in a custom fit that adapts throughout their physical development. Two forward-facing recline positions allow the RadianRXT to fit a wide variety of vehicle seats. Body support cushions keep infants and babies snug and positioned correctly.

SuperLATCH Installation

SuperLATCH Feature for Secure Installation

Diono's SuperLATCH feature makes use of your car's LATCH system to take advantage of the RadianRXT's full weight capacity.* The SuperLATCH connectors are successfully crash tested for children weighing up to 45 pounds rear-facing and up to 80 pounds forward-facing. In vehicles with LATCH anchors, SuperLATCH is a safe, convenient way to install the RadianRXT. Rubber bottom grips protect your car's upholstery and ensure the seat won't slide after installation.

Compact Design

Slim Profile and Convenient Features

A slim profile means the RadianRXT can sit three across in most vehicles. Because it doesn't have a pedestal, the seat sits relatively low which allows the child to board with ease. The seat folds up when not in use, so storing or transporting the seat is easy. The machine-washable cover and cup holder compatibility (one included, you can add up to four per seat) make this car seat even more convenient.

NCAP Crash Tested

Testing and Warranty Information

This car seat surpasses federal crash test standards and meets NCAP standards, the industry benchmark for verifying child seat performance in severe accident conditions. The RXT is tested at its maximum forward-facing, rear-facing and booster weight capacities and is rated for an impressive 10 years of life. The car seat is also FAA approved for use on airplanes. The Diono RadianRXT Birth to Booster Car Seat is backed by a manufacturer's limited one-year warranty.

Product Description

The Diono RadianRXT is a highly versatile car seat that could be the only seat you'll ever need. It comfortably seats rear-facing children from 5-45 lbs, forward-facing children from 20-80 lbs in 5-point harness, then converts to a booster for children up to 120 lbs. It's built for strength and safety with a steel alloy frame, reinforced sidewalls, adjustable head support and our patented SafeStop energy absorbing harness. EPS foam surrounds the child's head and body to provide complete side impact protection. Our unique SuperLATCH system makes installation easy.

The RadianRXT is NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions, and the only car seat rated for LATCH use with a child up to 80 lbs. The RadianRXT sits low on a vehicle seat for easy child boarding, features memory foam padding and infant support pillows. Expandable sides and a longer seat bottom provide extra room and comfort for your growing child. One cup holder is included, with the option to add up to 4 cup holders. In addition to all this versatility, it folds flat for travel and storage, has a 10 year life and offers amazing safety, comfort and convenience your child won't outgrow.


  • The Diono RadianRXT is rear-facing: 5 - 45 lbs; Forward-facing: 20 - 80 lbs and up to 57 inches in a 5-point harness; Booster to 120 lbs
  • Steel alloy frame and aluminum reinforced sides; SafeStop energy absorbing harness; Adjustable head support, reinforced for complete side impact safety: Energy absorbing EPS foam panels on all sides
  • Rear-facing tether capability; LATCH installation up to 80 lb child; 5 shoulder and 3 buckle positions for custom fit; Expandable sides and longer seat bottom for leg support and comfort
  • 2 recline positions in forward-facing mode; Sits low on vehicle seat for easy child boarding; Fits 3 across in a mid-size vehicle and offers more shoulder space
  • Folds flat for travel and storage

Additional Info





5 lbs

120 lbs


Adjustable Head Support,Cup Holder(s)



31.6 pounds

25.7 x 13.2 x 6.8

How to Get It

  • This item can be shipped to all 50 United States including Alaska & Hawaii
  • This item is NOT eligible for shipping to APO/FPO addresses, U.S. Territories, Puerto Rico or P.O. Boxes
  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • This item may ship by itself

  • This item ships via Standard Shipping only

(learn more):

  • This item is sold in our stores
  • Orders placed for Store Pickup will receive online pricing and promotions
  • In-stock status is approximate and may not reflect recent sales
  • Not all items are carried at all stores. Please click the "Select a store" link to check product availability
This item may be shipped in the manufacturer's original packaging, which could reveal the contents of the box

Average Customer Rating:

by PowerReviews
Diono Radian RXT Convertible Car Seat - Rugby

(based on 4 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


  • Comfortable (3)
  • Durable (3)


    Best Uses

      Reviewed by 4 customers

      Sort by

      Displaying reviews 1-4

      Back to top

      (1 of 1 customers found this review helpful)


      All The Positive Reviews Were Right

      By Lucky Missouri Grandpa

      from Kirkwood, Missouri

      About Me Grandparent

      Verified Buyer


      • Comfortable
      • Easy to Adjust
      • Easy to Clean
      • Easy to install
      • Safe
      • Sturdy
      • Stylish


      • Heavy

      Best Uses

      • Toddlers

      Comments about Diono Radian RXT Convertible Car Seat - Rugby:

      I needed a very safe rear facing car seat for our 17 month old grandson that would fit in a Prius and also seat 2 adults in the back seat. After lots of research and reading 100's of reviews, I ordered the Diono Radian RXT car seat. Just arrived and easy to install in the center seat. It fits great and both driver and passenger seats have plenty of room without the angle adjuster...although I ordered it just in case. Both rear passenger adults have room to buckle their seat belts that has been nearly impossible with every other car seat. I love the folding feature even though our first trip will not include and airplane use...just want to be prepared. I'm a hiker and have carried a 48 pound backpack down the Grand Canyon, but not sure I would want to be carrying this car seat on my is heavy at about 25 #'s and just plain bulky to carry without having real good backpack straps. I like the other suggestion to use a small folding 2 wheel dolly and just happened to have one. Can strap the car seat to the dolly to get through the airport with the little one, then use it on the plane and stow the dolly in the overhead. We have tried 4 other car seats and while most are functional, the Diono Radian RXT is just a cut above in features and should last for many years. Very happy with the purchase and would recommend.

      Comment on this review

      (0 of 14 customers found this review helpful)



      By upset

      from Sweetwater Texas

      About Me Grandparent

      Verified Buyer



        • Missing

        Best Uses

          Comments about Diono Radian RXT Convertible Car Seat - Rugby:

          No product ever deliver! The warranty was to be sent by e-mail. I never received it. The seat got lost in Dallas and still never came. I'm upset - so much money for nothing.

          • Was this a gift?:
          • Yes

          Comment on this review


          We love this car seat!!

          By Tesla's mommy

          from Irvine, Ca

          About Me First Time Parent

          Verified Buyer


          • Comfortable
          • Durable
          • Easy To Clean
          • Quality Construction


            Best Uses

            • Everyday Use
            • Travel

            Comments about Diono Radian RXT Convertible Car Seat - Rugby:

            We've been using this car seat for a few weeks now and our 6 month old loves it. The best thing about this seat so far is that it's not as constricting as other car seats we've tried. We don't have to lift her up and bump her head on the roof to put her in it. Also, our baby is in the 97th percentile for height already and this is the best car seat for rear facing kids at the highest height and weight maximum. We want to keep her rear facing as long as possible because its safest so this is the best choice for us. It was a little bit confusing to install but it's worth it. It's also the last seat we'll ever need to buy since it turns into a booster up to 120 pounds.

            • Was this a gift?:
            • No

            Comment on this review

            (1 of 1 customers found this review helpful)


            Wonderful Car Seat

            By KMae

            from Highlands Ranch, CO

            About Me First Time Parent


            • Comfortable
            • Easy to install
            • Safe
            • Sturdy


            • Bulky
            • Heavy

            Best Uses

            • Infants
            • Toddlers

            Comments about Diono Radian RXT Convertible Car Seat - Rugby:

            We love this car seat! It's awesome.

            -- So so cushy and comfy
            -- High weight/height limits allow for extended rear facing
            -- Easy to buckle
            -- Super LATCH makes installation easy (best thing ever!)
            -- Thin enough that your other passengers won't be squished
            -- Fabric color doesn't get too hot in the sun

            -- Heavy. Super heavy.
            -- Harder to adjust than some other high-end car seats

            We used a more inexpensive seat for 2 weeks on vacation and couldn't wait to get back to this seat.

            Comment on this review

            Displaying reviews 1-4

            Back to top

            Spoiler Alert! Important Note for Gift Givers!

            One or more of the items you are adding to your cart may ship in the manufacturer's original packaging which may reveal what's inside.

            To avoid spoiling the surprise, consider shipping this item to another location or selecting "In Store Pick Up" during the checkout process.

            I understand this item(s) may ship in the manufacturer's original packaging or I'm picking up in store and would like to add it to my cart.

            Cancel Do not add item(s) to cart.

            Previous Next