The luxury 3 across All-in-One
Become a VIP Member and earn points & exclusive rewards along your journey. Learn More
Receive perks when you sign up for VIP Rewards

Sign Up
Create a free account and get 100 points.

Earn Points
Every time you shop and share your journey.

Redeem Points
Redeem points for exclusive discounts & perks.

Bonus Points
Exclusive anniversary & birthday bonus.
Radian® 3QXT®+ FirstClass™ SafePlus™
Introducing the luxury 3 across All-in-One Car Seat for first class travel from birth to booster suitable from 4 - 120 lb / 1.8 - 54 kg. Diono Radian® 3QXT®+ FirstClass™ SafePlus™ features SafePlus™ engineering, exclusive premium fashion and SafePlus™ 2-in-1 anti-rebound panel and adjustable calf support for the very best in safety, comfort and style.
Features:
- LUXURY TRAVEL FROM BIRTH TO BOOSTER - From rear-facing to forward facing Radian® 3QXT®+ FirstClass™ SafePlus™ adapts as your child grows for 10 years of first-class travel from birth to booster. Suitable from 4 – 120 lb / 1.8 - 54 kg.
- SafePlus™ 2-IN-1 ANTI-REBOUND PANEL AND ADJUSTABLE CALF SUPPORT - 1. Anti-rebound panel increases stability when rear-facing and reduces rebound rotation by up to 50%. 2. Adjustable calf support and comfort liner provides additional comfort as they transition to forward-facing.
- SafePlus™ ENGINEERING - Features a unique combination of engineering features and testing to the highest safety standards to ensure the safest seat possible.
- EXCLUSIVE PREMIUM FASHION - Designed with mesh panels and premium fabrics. Easy remove and machine washable for comfort, convenience and style All-in-One.
- THE ORIGINAL RADIAN 3 ACROSS - Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian® combinations without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
- Includes 2x XL Cup holders & Car Seat Protector
Product Specs
- Minimum User Weight: 4 lb / 1.8 kg
- Maximum User Weight: 120 lb / 54 kg
- Minimum User Weight - Rear Facing: 4 lb / 1.8 kg
- Maximum User Weight - Rear Facing: 50 lb / 22.7 kg
- Maximum User Weight - Rear Facing LATCH: 35 lb / 15.8 kg
- Minimum User Weight - Forward Facing: 22 lb / 10 kg
- Maximum User Weight - Forward Facing: 65 lb / 29.5 kg
- Maximum User Weight - Forward Facing LATCH: 40 lb / 18 kg
- Minimum User Weight - Booster: 40 lb / 18 kg
- Maximum User Weight - Booster: 120 lb / 54 kg
- Seat Weight: 34.2 lb / 15.5 kg
- Product Height: 28.5 in / 72.4 cm
- Product Width: 17 in / 43.2 cm
- Product Depth: 16 in / 40.6 cm
- Product Height - Folded: 28.5 in / 72.4 cm
- Product Width - Folded: 17 in / 43.2 cm
- Product Depth - Folded: 11.5 in / 29.2 cm
- Maximum User Height: 57.1 in / 145 cm
- Number of Head Support Positions: 12
Care & Maintenance
Covers: Machine wash cold, line dry. Shell and Components: Spot clean
Warranty Information
12 months standard warranty - extended to 36 months when you register with Diono® post purchase
Plays well with
Radian® Car Seat Travel Backpack
Mex$1,699.99
Durable, weather-resistant travel backpack for families on the go