---
product_id: 182696469
title: "Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black"
brand: "diono"
price: "₩879148"
currency: KRW
in_stock: true
reviews_count: 8
category: "Diono"
url: https://www.desertcart.kr/products/182696469-diono-radian-3r-3-in-1-convertible-car-seat-rear
store_origin: KR
region: South Korea
---

# Slim fit fits 3 across without compromise FAA approved foldable design for travel Reinforced steel frame for ultimate safety Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black

**Brand:** diono
**Price:** ₩879148
**Availability:** ✅ In Stock

## Summary

> 🚗 Safety Meets Sleek: The Only Car Seat You’ll Ever Need

## Quick Answers

- **What is this?** Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black by diono
- **How much does it cost?** ₩879148 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/182696469-diono-radian-3r-3-in-1-convertible-car-seat-rear)

## Best For

- diono enthusiasts

## Why This Product

- Trusted diono brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Slim Fit, Big Comfort:** Fits 3 across in most vehicles without sacrificing safety or passenger space—perfect for growing families.
- • **Steel-Reinforced Core:** Mechanically engineered with automotive-grade alloy steel for unmatched durability and impact protection.
- • **10 Years of Safety, One Seat:** From newborn to booster (5-120 lbs), this seat grows with your child—no need to upgrade.
- • **Travel-Ready & Easy to Install:** FAA approved for air travel, folds compactly, and features SuperLATCH for quick, secure installation.
- • **Extended Rear-Facing Protection:** Keep your child rear-facing safely up to 50 lbs, maximizing crash protection during critical early years.

## Overview

The Diono Radian 3R is a premium 3-in-1 convertible car seat engineered with a reinforced steel frame and memory foam comfort. Designed to grow with your child from birth to booster (5-120 lbs), it offers extended rear-facing protection up to 50 lbs and a slim profile that fits 3 across in most vehicles. FAA approved and foldable for travel, it combines safety, convenience, and space-saving design for the modern family on the go.

## Description

The Diono Radian 3R is the original slim-fit 3 across All-in-One convertible car seat, designed to protect from baby to booster seat (5 - 120 lb). 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 lb. 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 slim-fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. Our SuperLATCH system (UAS Compatible) makes installation easy and super secure. 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.

Review: Easy to move from one vehicle to the other i - Bought this to use in the car and side by side for granddaughter!! The ease of moving it from one to the other is great! The multiple locks and latches are nice! Fits well and slim in the car. Looks great and super sturdy.
Review: Great car seat - This car seat is worth the money. It will grow with our son and fits any car or off road vehicle. I bought it especially to fit the backseat of our sxs. Due to how narrow it was, it required a special car seat. The stability and comfort were great for our toddler. The latch system was easy to install but strong and sturdy. Would definitely buy this again.

## Features

- 10 Years One Car Seat - from Birth to Booster (5 - 120 lb) it's all you will need. Grows with your child, ultimate protection on every road trip. 4 modes in 1 seat!
- Rear Facing for Longer - lovingly engineered to keep your child rear-facing up to 50 lb.
- Fits 3-Across - our famous slim-fit design with zero compromises to safety, space, or comfort.
- Mechanically engineered from reinforced automotive grade high-strength steel, our unique core shell shields and protects your child.
- High-quality ComfortPlus Memory Foam, always included.
- The original and only all-in-one convertible car seat that folds for travel or compact storage. FAA approved for airline use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083F5P7VP |
| Age Range Description | Newborn |
| Best Sellers Rank | #2,061 in Baby ( See Top 100 in Baby ) #10 in Convertible Child Safety Car Seats |
| Brand | Diono |
| Color | Black Jet |
| Customer Reviews | 4.6 out of 5 stars 8,080 Reviews |
| Forward Facing Car Seat Minimum Height | 29.9 Inches |
| Forward Facing Maximum Weight | 120 Pounds |
| Forward Facing Minimum Weight | 22 Pounds |
| Global Trade Identification Number | 00677726506200 |
| Harness Type | 5-Point |
| Included Components | radian® 3R car seat, detachable rear-facing base, foam harness pads, lap belt cushion, Safe Stop®energy absorbing harness, rear-facing top tether, Instruction manual |
| Infant Toddler Car Seat Type | Convertible Car Seat |
| Installation Type | Latch |
| Item Dimensions D x W x H | 16.1"D x 16.9"W x 28.4"H |
| Item Height | 28.5 inches |
| Item Type Name | All-in-One |
| Item Weight | 23 Pounds |
| Manufacturer | Diono |
| Manufacturer Warranty Description | 12 months |
| Material | Alloy Steel, Plastic, Polypropylene, Polystyrene |
| Material Type | Alloy Steel, Plastic, Polypropylene, Polystyrene |
| Maximum Height Recommended | 57 Inches |
| Maximum Weight Recommendation | 120 Pounds |
| Minimum Height Recommendation | 18.1 Inches |
| Minimum Weight Recommendation | 5 Pounds |
| Number of Height Positions | 1 |
| Orientation | Convertible Seat |
| Product Dimensions | 16.1"D x 16.9"W x 28.4"H |
| Rear Facing Car Seat Maximum Height | 44.1 Inches |
| Rear Facing Maximum Weight | 50 Pounds |
| Rear Facing Minimum Weight | 5 Pounds |
| UPC | 677726506200 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Diono
- **Color:** Black Jet
- **Installation Type:** Latch
- **Material:** Alloy Steel, Plastic, Polypropylene, Polystyrene
- **Orientation:** Convertible Seat

## Images

![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 1](https://m.media-amazon.com/images/I/61Qj1rdyy5L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Can the Radian be rear-facing and still give a tall driver (6 ft) enough room? Or will it fit in the middle without hitting the driver's seat? Mazda3.**
A: Place it behind the passenger side, if you’re shorter.  It you’re 6’ tall, it will be too crowded.  You may try it in the middle, but it may still affect the front passengers.

**Q: How deep does the vehicle seat have to be for rear facing and for forward facing?**
A: This seat is hard to install properly while rear facing because of its height. The angle of the seat has a lot to do with it. We have a rav4 and a Prius the Prius actually fit better because of the streeper seating angle. They sell a foam angle adjuster that does pretty well in the rav4, but if I was much taller (I'm 5'9") it'd be a tight squeeze up front (the car seat is not supposed to touch the seat in front of it.) These are very well made though and much higher quality than many other seats in the same price range. Plus you can fit 3 across in every vehicle. I'd recommend to anyone.

**Q: Fecha de vencimiento?**
A: We ship using UPS ground and normally the item goes out either same day or next day.

**Q: How do I secure on in the middle seat in the back (3 seats across ans forward facing) if I don’t have latch in the middle seat?**
A: If you are unable to attach the seat with the latch system you can secure it with the vehicles seatbelt.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to move from one vehicle to the other i
*by M***D on December 14, 2025*

Bought this to use in the car and side by side for granddaughter!! The ease of moving it from one to the other is great! The multiple locks and latches are nice! Fits well and slim in the car. Looks great and super sturdy.

### ⭐⭐⭐⭐⭐ Great car seat
*by B***S on August 19, 2025*

This car seat is worth the money. It will grow with our son and fits any car or off road vehicle. I bought it especially to fit the backseat of our sxs. Due to how narrow it was, it required a special car seat. The stability and comfort were great for our toddler. The latch system was easy to install but strong and sturdy. Would definitely buy this again.

### ⭐⭐⭐⭐⭐ Fits 3 wide, Great quality worth the $
*by J***R on December 29, 2025*

With the birth of our daughter I needed to go 3 wide on the car seats, which I was told was impossible for my Dodge Charger. Well I purchased 2 of these Diono Radian 3R seats and it worked. The seats are really high quality, loved the added harness protection for toddlers who meet the weight requirement. High quality product and my 2 toddlers are comfortable in them.

## Frequently Bought Together

- Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black
- Diono XL Car Seat Cup Holders for Radian and Everett Car Seats, Pack of 2 Cup Holders, Black
- Diono Ultra Mat Complete Back Seat Upholstery Protection from Child Car Seats and Pets, Crash Tested, Premium Ultra Thick Padding, Durable, Water Resistant, Anti-Slip, 3 Mesh Storage Pockets

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-23*