radian® r120

520 4.55
Price: $266.99

The radian r120 car seat is designed with your child’s security and safety as top priorities.

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Black Forest

Product Details

5-star safety. Thoughtful design.

Serious safety and comfort. Our radian® r120 convertible car seat has a full steel frame and aluminum reinforced sides to maximize protection. The slim, all-in-one design works rear-facing, forward-facing and as a booster fitting kids from 5-120 pounds.

Some say three’s a crowd. We say, the more the merrier! Radian® r120 car seats fit 3-across in most mid-size vehicles.

Worth the Weight

Our convertible car seats are made from steel for safety you can feel. The fully integrated steel frame is wrapped in thick engineered plastic to withstand severe crash forces. Deep, aluminum reinforced sidewalls provide excellent side impact protection, while energy absorbing EPS foam surrounds your child for ultimate safety. Diono car seats are definitely worth the weight.

Extended rear-facing

The radian® r120 keeps children comfortably rear-facing from 5-45 pounds for the safest possible position. Premium, plush head and body support cushions are included for newborns and infants.

Room to grow

Accommodates forward-facing children from 20-65 pounds in a 5-point harness and converts to booster mode for kids 50-120 pounds to protect your child at every age.

Key Features

  • NEW! Premium, plush interlock knit fabric (available in Essex color)

  • Full steel frame for unmatched safety

  • Seats rear-facing children comfortably from 5-45 pounds

  • Seats forward-facing children from 20-65 pounds in a 5-point harness

  • Converts to a booster for children from 50 pounds up to 120 pounds, and up to 57″ tall – proper fit in booster mode

  • Unique SuperLATCH™ system makes installation easy

  • Fits 3-across in most mid-size vehicles while providing spacious interior for child

  • Folds flat for travel and is FAA certified

  • Infant body support cushions keep babies properly positioned

  • Aluminum reinforced sidewalls lined with energy absorbing EPS foam for superior side impact protection

  • Safe Stop® energy absorbing harness

  • 5 shoulder and 3 buckle positions adjust for a comfortable ride

  • Rear-facing tether capability

  • Expandable sides and long seat bottom allow proper leg support

  • Low-sitting profile makes it easy for your child to board

  • Angled cup holder keeps drinks upright and within easy reach

  • Cover is machine washable

  • Rubber bottom grips for no-slip installation

  • 10 year life from the date of purchase


A. Nelson

“Absolutely love this car seat. Did lots of research. Wanted a solid, 5-point harness and a steel frame. I definitely feel like both of my babies are protected and safe. I highly, highly recommend this car seat.”

Four good reasons for our child safety seats!

  • Experience: Happy kids equate to a happy ride on your family journeys through life. Comfort for all of your kids through all of their stages, simplifies your choice, but doesn’t compromise your style.
  • Comfort: Parenthood offers you an abundance of product choices. Your needs and your child's needs drive us to provide you more features on our products. No journey is complete without comfortable memory foam and a cup holder.
  • Lifestyle: Family vacation travel is made easy with the radian r120. The car seat fold flat for easy travel and convenience. Radian’s sleek design fits on most domestic and international airline seats.
  • Journey: Your overprotective instinct blends well with our DNA. We use strong and crash absorbing materials to cover all the bases to protect your child.

4 ♥s for diono:

  • Experience: Simplify your choice with multiple uses for your growing child.
  • Comfort: No child should go without comfort and a cup holder on their journeys
  • Lifestyle: Easy travel with convenience of folding flat and fits on an airplane.
  • Journey: You want to overprotect your child as much as we do. So we do!