The original expandable booster has evolved
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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:
- NEXT GENERATION BOOSTER SEAT - 15 safety and style upgrades from the Monterey XT. Ensure protection, comfort and style with the new automotive inspired fabrics that cover the entire vehicle seatback
- 4 LAYER SIDE IMPACT PROTECTION - Reinforced high impact aluminum that provides 4-layers of enhanced side impact protection for head, shoulders and torso
- BREATHABLE SIDE PANELS - Designed with breathable exo-shell side panels to enhance airflow and keep your child cool on the move
- EXPANDABLE HEIGHT & WIDTH - Provides 69% increase in occupancy space as your child grows for a high back booster seat. Providing comfort and safety for your childs car ride
- 2 SEATS IN 1 - Easily converts into a backless booster seat, with a wide contoured seat base and 2x fold away cup and snack holders
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: 20.5 in / 52.1 cm
- Product Depth: 16.1 in / 41 cm
- Seat Weight: 18.3 lb / 8.3 kg
- Maximum User Height: 63 in / 160 cm
- Number of Head Support Positions: 11
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 18 - 54 kg (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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