• Home
  • Blog
  • Compare

Gifts Sets For Kids
Shop Now.

babyshop
ASK A QUESTION
Menu
babyshop
0 Compare
Wishlist
Search
  • Home
  • Shop
    • Activity and Entertainment
      • Activity Centers
      • Baby Gyms and Playmats
      • Bouncers, Jumpers and Swings
      • Floor Seats and Loungers
      • Playard Bedding
      • Walkers
    • All Discounts
    • Baby Care
      • Bathing
      • Grooming
      • Hair Care
      • Health
      • Pacifiers, Teethers and Teething Relief
      • Skin Care
    • Car Seats and Accessories
      • Car Accessories
      • Car Seat
      • Car Seat Bases
    • Diapering
      • Changing Table Pads and Covers
      • Changing Tables
      • Cloth Diaper Accessories
      • Diaper Bags
      • Diaper Creams
      • Diaper Pails and Refills
      • Diaper Stackers and Caddies
      • Disposable Diapers
      • Powders
      • Wipes and Holders
    • Feeding
      • Baby Foods
      • Bibs and Burp Cloths
      • Bottle-Feeding
      • Breastfeeding
      • Food Mills
      • Food Storage
      • Highchairs and Booster Seats
      • Solid Feeding
    • For Moms
      • Family Planning Tests
      • Maternity
      • Maternity Pillows
      • Pillows and Pillow Covers
      • Prenatal Monitoring Devices
    • Gifts
      • Albums, Frames and Journals
      • Gift Sets
      • Keepsakes
      • Rattles and Plush Rings
    • Nursery
      • Bedding
      • Furniture
      • Decor
    • Potty Training
      • Potties
      • Seat Covers
      • Seats
      • Training Pants
      • Travel Potties
    • Safety
      • Bathroom Safety
      • Cabinet Locks and Straps
      • Edge and Corner Guards
      • Electrical Safety
      • Gates and Gate Extensions
      • Kitchen Safety
    • Strollers
      • Joggers
      • Lightweight
      • Prams
      • Standard
      • Tandem
      • Travel Systems
    • Travel Gear
      • Child Seats
      • Play Cards
      • Harnesses and Leashes
      • Portable Changing Pads
      • Shopping Cart Covers
    • Games
      • Video Games
  • Today’s Deals
  • Coupons
  • Gift Cards
  • Blog
  • About us
  • Contact us
0 Compare
0 Wishlist
Click to enlarge
Home Shop Car Seats and Accessories Car Seat Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet…
Baby Trend Secure Snap Tech 35 Infant Car Seat, Chambray , 16.5x16.25x28.5 Inch (Pack of 1) $149.99
Back to products
Graco Atlas 65 2 in 1 Harness Booster Seat | Harness Booster and High Back Booster in One, Glacier , 19x22x25 Inch (Pack… $139.97
Visit the Diono Store

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet…

$199.99

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
HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an extra layer of protection and comfort for any child transitioning into booster mode.Shell and Components: Spot clean
10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the Radian 3R adapts as your child grows to offer a custom adjustable fit from birth to 120 lbs

    {"prodid":8555,"asin":"B083F5P7VP","prodcountry":"com","boxpos":false,"do_update":1}
    [{"domain":"com","name":"United States"},{"domain":"co.uk","name":"United Kingdom"},{"domain":"de","name":"Germany"},{"domain":"fr","name":"France"},{"domain":"ca","name":"Canada"},{"domain":"it","name":"Italy"}]
    {"main_aff_id":"wmoh900a-20","aff_ids":[{"country":"com","aff_id":"wmoh900a-20"},{"country":"co.uk","aff_id":"wmoh900a-20"},{"country":"de","aff_id":"wmoh900a-20"},{"country":"fr","aff_id":"wmoh900a-20"},{"country":"ca","aff_id":"wmoh900a-20"},{"country":"it","aff_id":"wmoh900a-20"}]}
  • -
Compare
Add to wishlist
Categories: Car Seat, Car Seats and Accessories
Share:
  • Description
  • Additional information
  • Reviews (0)
  • Shipping & Delivery
Description

The Diono Radian® 3R is the original slimfit 3 across all-in-one convertible car seat, designed to protect from baby to booster seat (5 – 120 pounds). 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 safe rear facing convertible car seat for longer up to 50 pounds. Built with a mechanically engineered, reinforced steel frame, made from automotive grade high strength steel, the radian is always ready to shield and protect. And when your family grows, the slimfit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. As travel car seat experts, Diono have naturally built in super portable and convenient features to the Radian 3R with original fold for easy transport and storage and easy remove machine washable covers. The radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

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
HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an extra layer of protection and comfort for any child transitioning into booster mode.Shell and Components: Spot clean
10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the Radian 3R 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

Additional information
Product Dimensions

‎16 x 17 x 28.5 inches

Item model number

‎50620

Is Discontinued By Manufacturer
Minimum weight recommendation

‎5 pounds

Maximum weight recommendation

‎120 Pounds

Minimum height recommendation

‎18.1 Inches

Maximum height recommendation

‎57 Inches

Material Type

‎Alloy Steel, Polypropylene, Plastic, Polystyrene

material_composition

‎90% Polyester, 10% Spandex

Care instructions

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

Additional product features
Number Of Items

‎1

Style

‎Radian 3R Fits 3 Across

Number of reclining positions

‎1

Batteries required
Orientation

‎Convertible Seat

Rear-facing minimum child weight

‎5 pounds

Rear-facing maximum child weight

‎50 Pounds

Harness type

‎5 Point

Item Weight

‎25.9 pounds

Brand

Visit the Diono Store

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet…” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery

Related products

Compare

COOLBEBE Upgraded 3-in-1 Babybody Support for Newborn Infant Toddler – Extra Soft Car Seat Insert Cushion Pad, Perfect…

Car Seats and Accessories, Car Accessories
$21.99
3-IN-1 REVERSIBLE - COOLBEBE Seat Liner baby car seat insert has a clever nested design, the sandwich mesh fabric liner is breathable and perfect for hot days. COOLBEBE Reversible Head Support is ultra-soft to the touch, absorbent, hypoallergenic, and is made for long-lasting RECOMMEND AGE - Providing all-around body support for infants, from birth to 10 kg Removable infant inserts provides more room for larger babies, Ideal for newborn and premature babies, from preemie, newborn, up until the age of 12 months VERSATILE - Two head supports combo, removable inner section, inner the thin part perfect for spring/autumn, two pieces combo fits for winter; Your baby will enjoy the super-soft velour fabric for comfortable support, perfect for all carriers, car seats, and strollers
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

Lusso Gear Kids Travel Tray for Toddler Car Seat, Travel Tray for Kids Car Seat, Lap Tray for Airplane, Kids Travel Desk…

Car Seats and Accessories, Car Accessories
$40.00
Make sure this fits by entering your model number. Tray Time is Play Time: Increase toddler fun with the Lusso Gear car seat travel tray. This foldable table accessory keeps children occupied with coloring, snacks, toys, and tablet entertainment. Kid Safe Travel: Lusso Gear's child tray accessories are constructed of reinforced fabric and toddler-friendly plastic, and they come with a safety strap. The 16"x12.5" dry erase board may be used for eating, coloring, and any other activity that toddlers can think of.
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

UPPAbaby VISTA Upper Adapters (for VISTA 2015-later)

Car Seats and Accessories, Car Accessories
$29.99
Quick, no-tools attachment Color coded dot indicators to ensure proper installment Stroller folds with adapters on
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

V VOLKGO Durable Car Seat Travel Bag – Ideal Gate Check Bag for Air Travel & Saving Money – for Safe & Secure Car Seat…

Car Seats and Accessories, Car Accessories
$30.09
Make sure this fits by entering your model number. Easy travel with car seat – V VOLKGO car seat bag makes it extremely easy to carry a baby car seat along with you even when traveling. With our car seat bag for air travel, you can gate check the bag & save money! Hassle-free & functionally effective design – the gate check bag for car seats comes with 2 padded backpack straps help keep your hands free such that you can easily show tickets, hold your baby or even sip a cup of coffee at the airport.
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

Onco Baby Car Mirror Rear-facing – Platinum Award Winning Car Mirror Baby Rear Facing Seat, Baby Essentials for Newborn…

Car Seats and Accessories, Car Accessories
$39.99
Make sure this fits by entering your model number. Peace of mind: Keep an eye on your child in the back seat and provide some additional entertainment with this handy and durable baby car seat mirror. A baby car essential designed for safe travel! Safety first: The wide car mirror is made from 100% shatterproof plastic. Once secured, the baby rear view mirror for car journeys stays in place and won’t wobble
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

Baby Head Support for Car Seat-Car Seat Head Support for Toddler-Head Band Strap Headrest, Stroller Carseat Sleeping…

Car Seats and Accessories, Car Accessories
$5.99
❤️IMPORTANT NOTE❤️Please use it under adult supervision! Make sure it’s tight enough on the back so it doesn’t slip down. Material: Cotton, Nylon, Plastic; Dimension: 8.4 x 4 x 1.1 inches in total. Very helpfull for your baby's sleeping at Pram Stroller or car
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

UnbuckleMe Car Seat Buckle Release Tool – As Seen on Shark Tank – Makes it Easy to Unbuckle a Child’s Car Seat – Easy…

Car Seats and Accessories, Car Accessories
$14.99
The proven car seat buckle release tool that eliminates thumb pain and broken nails from unbuckling a child's car seat Patented lever arm reduces the force needed to unbuckle a child's car seat by more than 50 percent and helps anyone with limited hand strength Soft, grippy surface keeps it stable and provides a comfortable surface for pressing
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Compare

Munchkin Brica Elite Seat Guardian Car Seat Protector and Cover for Baby/Child, Dark Grey

Car Seats and Accessories, Car Accessories
$38.99
The product measures 45 inch length x 20 inch width. Color safe construction won't bleed onto upholstery Dual grip traction technology grips on both sides to help minimize unwanted car safety seat movement
Add to wishlist
CHECK NEW PRICE ON AMAZON
Quick view
Quick Links
  • Home
  • Blog
  • Shop
  • Privacy Policy
  • Terms and Conditions
  • Affiliate Disclosure

JOIN OUR MAIL LIST FOR EXCLUSIVE

Offers & Deal

Email field is required to subscribe.

x

You Have Successfully Subscribed to the Newsletter

Recent Posts
  • 11b7345-3365-48d0-c5b-e440b6a1645_Meet_Charlie.png
    Meet Pregnancy and Postpartum Instructor Charlie
    August 1, 2025 No Comments
  • home-waterbirth-1024x873.jpg
    Redemptive Pregnancy and Homebirth after a First Pregnancy and Birth Filled With Complications – The Birth Hour
    July 22, 2025 No Comments
2024 vertexbaby.com ALL RIGHTS RECEIVED.
payments
  • Menu
  • Categories
  • Activity and Entertainment
    • Activity Centers
    • Baby Gyms and Playmats
    • Bouncers, Jumpers and Swings
    • Floor Seats and Loungers
    • Playard Bedding
    • Walkers
  • Baby Care
    • Bathing
    • Grooming
    • Hair Care
    • Health
    • Pacifiers, Teethers and Teething Relief
    • Skin Care
  • Car Seats and Accessories
    • Car Accessories
    • Car Seat
    • Car Seat Bases
  • Diapering
    • Changing Table Pads and Covers
    • Changing Tables
    • Cloth Diaper Accessories
    • Diaper Bags
    • Diaper Creams
    • Diaper Pails and Refills
    • Diaper Stackers and Caddies
    • Disposable Diapers
    • Powders
    • Wipes and Holders
  • Feeding
    • Baby Foods
    • Bibs and Burp Cloths
    • Bottle-Feeding
    • Breastfeeding
    • Food Mills
    • Food Storage
    • Highchairs and Booster Seats
    • Solid Feeding
  • For Moms
    • Family Planning Tests
    • Maternity
    • Maternity Pillows
    • Pillows and Pillow Covers
    • Prenatal Monitoring Devices
  • Gifts
    • Albums, Frames and Journals
    • Gift Sets
    • Keepsakes
    • Rattles and Plush Rings
  • Nursery
    • Bedding
    • Furniture
    • Decor
  • Potty Training
    • Potties
    • Seat Covers
    • Seats
    • Training Pants
    • Travel Potties
  • Safety
    • Bathroom Safety
    • Cabinet Locks and Straps
    • Edge and Corner Guards
    • Electrical Safety
    • Gates and Gate Extensions
    • Kitchen Safety
  • Strollers
    • Joggers
    • Lightweight
    • Prams
    • Standard
    • Tandem
    • Travel Systems
  • Travel Gear
    • Child Seats
    • Play Cards
    • Harnesses and Leashes
    • Portable Changing Pads
    • Shopping Cart Covers
  • Home
  • Blog
  • About us
  • Contact us
  • Wishlist
  • Compare
  • Login / Register
0 Wishlist
0 Compare
Menu