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Monterey® 4DXT

$199.99 - $249.99

The original expandable booster has evolved


$199.99 - $249.99
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Additional 2-Year Warranty

Receive an additional 2-year warranty on all car seats and strollers purchased from diono.com

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Diono proudly offers free shipping on orders over $300

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1-2-1 Virtual Car Seat Fitting

Book a 1-2-1 virtual car seat fitting with a member of our car seat safety team.

* T & C's apply

Monterey® 4DXT

We’ve taken the award-winning Monterey® booster seat and painstakingly engineered 15 upgrades to create the next generation of booster. Suitable from 40 - 120 lb (18 - 54 kg) or approx. 4 – 12 years.

Features:

  • 15 UPGRADES FROM MONTEREY® XT - Includes automotive inspired fabrics that cover the entire booster seat back and breathable side panels to enhance airflow to keep your child cool on the move.
  • 4 LAYER SIDE IMPACT PROTECTION - Extra deep aluminum reinforced sides provides 4 layers of enhanced side impact protection for their head, shoulders and torso.
  • EXPANDABLE HEIGHT & WIDTH - 11 headrest positions and expandable side walls provides 69% increase in occupancy space as your child grows.
  • TWO SEATS IN ONE - Easily converts from a high back booster to a backless booster seat with wide contoured seat base and two retractable cup holders.
  • QUICK & SECURE INSTALLATION - Equipped with LATCH connectors and front adjusters to securely connect the booster seat to your vehicle in seconds, enhancing safety and stability.

Product Specs

  • Minimum User Weight: 40 lb / 18 kg
  • Maximum User Weight: 120 lb / 54 kg
  • Product Height: 27.2 in / 69 cm
  • Product Width: 21.3 in / 54 cm
  • Product Depth: 16.1 in / 41 cm
  • Seat Weight: 18.7 lb / 8.48 kg

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

The Diono Difference

All Diono boosters are designed and engineered to go over and above safety standards.
One thing all parents know, kids will keep on growing! Diono boosters are suitable from 40 - 120 lb (approx. 4 - 12 years) for 8 years of use.
The Diono Monterey® is the original expandable booster seat, engineered with both height and width adjustment for a custom fit at every age.
Integrated LATCH connectors and front adjusters make for a simple and safe installation every time.

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