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Diono Radian rXT Convertible Car Seat

Diono Radian rXT Convertible Car Seat

by Diono

Regular Price: $299.99

Special Price: $259.99

This is the car seat of steel–literally! But despite its hard-core interior, it is comfy soft for your littles from 5 to 120 pounds! That’s right, this is the one and only car seat you will ever need!

Diono Radian rXT Convertible Car Seat - Black Mist
Diono Radian rXT Convertible Car Seat - Midnight

Regular Price: $299.99

Special Price: $259.99

Availability: In stock

Shipping: In-stock items ship within 1 business day if ordered by 4 p.m. EST

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The Radian rXT puts an innovative twist on all things car seat. It has a rear-facing weight capacity of 5-45 pounds with removable infant inserts that can be removed when deemed necessary. Its forward-facing weight limits are 20-65 pounds, and its booster seat capacity is 50-120 pounds. Other fantastic features include its rear-facing tether latch option, and its strong steel interior. Three of these fit across a row of seats in most mid-sized vehicles.

Why Parents Love the Diono Radian rXT Convertible Car Seat

  • It’s the only car seat you’ll need for your child from 5-120 pounds!
  • Easy installation
  • Professionally and safely made

Why Children Love the Diono Radian rXT Convertible Car Seat

  • Low-sitting profile helps them climb in easily on their own
  • Angled cup holder for easy reach
  • Comfortable

What's Included

  • Plush head and body support cushions for newborns and infants
  • Cup holder


  • All-in-one convertible car seat
  • Unmatched safety from steel frame
  • Easy installation
  • Folds flat
  • Additional side-impact protection
  • Safe Stop energy-absorbing harness
  • Headrest adjusts into 12 positions
  • 5 shoulder and 3 buckle positions
  • Long seat bottom and expandable sides
  • Rubber bottom grips for no-slip installation
  • 10 year lifespan
  • FAA certified

Installation Options

  • SuperLATCH system
  • Rear-facing Tether LATCH option
  • Seatbelt Installation

Weight Capacity

  • Rear-facing position: 5-45 lbs
  • Forward-facing position in 5-point harness: 20-65 lbs
  • Booster: 50-120 lbs and up to 57” tall

Weight and Dimensions

  • 26.5 lbs
  • Car seat height: 28.5”
  • Seat width: 15”
  • Seat depth: 16”
  • Seat pan depth: 13”
  • Folded depth: 7”
  • Exterior shoulder width: 17”
  • Interior shoulder width: 13”
  • Harness strap positions: 17”, 14.25”, 11.5”, 9.75”, and 8.25”
  • Crotch buckle positions: 7.5”, 6”, and 4”
  • Can fit three across in most mid-sized vehicles

Material and Care Instructions

  • Full steel frame
  • Reinforced aluminum sides
  • Memory foam
  • Energy absorbing EPS foam
  • Premium plush interlock knit fabric
  • Rubber bottom grips
  • Machine washable cover
  • Line or air dry cover
  • DO NOT machine wash memory foam
  • All other parts are to be wiped with damp cloth with warm water
  • Towel dry
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