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Monterey® 4DXT

$199.99
Monterey® 4DXT Expandable Booster Seat [Yellow Sulphur]
Monterey® 4DXT Expandable Booster Seat [Black]
Monterey® 4DXT Expandable Booster Seat [Blue]
Monterey® 4DXT Expandable Booster Seat [Plum]
Monterey® 4DXT Expandable Booster Seat [Red]
[Yellow Sulphur]
[Yellow Sulphur]
With 15 Improvements from previous model [Yellow Sulphur]
Featuring 4 layers of side impact protection [Yellow Sulphur]
Advance air flow with breathable side panels [Yellow Sulphur]
69% increase in seat occupancy [Yellow Sulphur]
Monterey® 4DXT high back booster [Yellow Sulphur]
Monterey® 4DXT backless booster [Yellow Sulphur]
With integrated drinks holder [Yellow Sulphur]
11 headrest positions [Yellow Sulphur]
Easy one hand width adjust [Yellow Sulphur]
Monterey® 4DXT has a fully covered back [Yellow Sulphur]
LATCH Connectors for quick and easy installation [Yellow Sulphur]
Total comfort with contoured seat base [Yellow Sulphur]
Re-modelled headrest [Yellow Sulphur]
[Black]
[Black]
With 15 Improvements from previous model [Black]
Featuring 4 layers of side impact protection [Black]
Advance air flow with breathable side panels [Black]
69% increase in seat occupancy [Black]
Monterey® 4DXT high back booster [Black]
Monterey® 4DXT backless booster [Black]
With integrated drinks holder [Black]
11 headrest positions [Black]
Easy one hand width adjust [Black]
Monterey® 4DXT has a fully covered back [Black]
LATCH Connectors for quick and easy installation [Black]
Total comfort with contoured seat base [Black]
Re-modelled headrest [Black]
Monterey® 4DXT Expandable Booster Seat [Blue]
[Blue]
With 15 Improvements from previous model [Blue]
Featuring 4 layers of side impact protection [Blue]
Advance air flow with breathable side panels [Blue]
69% increase in seat occupancy [Blue]
Monterey® 4DXT high back booster [Blue]
Monterey® 4DXT backless booster [Blue]
With integrated drinks holder [Blue]
11 headrest positions [Blue]
Easy one hand width adjust [Blue]
Monterey® 4DXT has a fully covered back [Blue]
LATCH Connectors for quick and easy installation [Blue]
Total comfort with contoured seat base [Blue]
Re-modelled headrest [Blue]
[Plum]
[Plum]
With 15 Improvements from previous model [Plum]
Featuring 4 layers of side impact protection [Plum]
Advance air flow with breathable side panels [Plum]
69% increase in seat occupancy [Plum]
Monterey® 4DXT high back booster [Plum]
Monterey® 4DXT backless booster [Plum]
With integrated drinks holder [Plum]
11 headrest positions [Plum]
Easy one hand width adjust [Plum]
Monterey® 4DXT has a fully covered back [Plum]
LATCH Connectors for quick and easy installation [Plum]
Total comfort with contoured seat base [Plum]
Re-modelled headrest [Plum]
[Red]
[Red]
With 15 Improvements from previous model [Red]
Featuring 4 layers of side impact protection [Red]
Advance air flow with breathable side panels [Red]
69% increase in seat occupancy [Red]
Monterey® 4DXT high back booster [Red]
Monterey® 4DXT backless booster [Red]
With integrated drinks holder [Red]
11 headrest positions [Red]
Easy one hand width adjust [Red]
Monterey® 4DXT has a fully covered back [Red]
LATCH Connectors for quick and easy installation [Red]
Total comfort with contoured seat base [Red]
Re-modelled headrest [Red]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
[Dark Gray]
Monterey® 4DXT Expandable Booster Seat [Yellow Sulphur]

The original expandable booster has evolved


$199.99

Enjoy worry-free buying and perks with the Diono Difference

Recieve perks when you shop on diono.com

Additional 2-Year Warranty

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

Free Shipping on orders over $400*

Diono proudly offers free shipping on orders over $400

Unlock exclusive offers & discounts

Unlock exclusive news, offers and discounts on all diono.com products.

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

Receive a FREE Ultra Mat® Car Seat Protector with your purchase!

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

Diono Monterey® 4DXT Booster - Features (US and Canada)

Receive a FREE Ultra Mat® Car Seat Protector with your purchase!

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