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.
monterey® 4DXT
- DESCRIPTION
- SPECS
- VIDEO
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
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: Front loader only, gentle cycle machine wash cold, line dry.
Shell and Components: Spot clean
Warranty Information
12 months standard warranty
![](https://img.youtube.com/vi/SXjCjZNZzao/maxresdefault.jpg)
Diono Monterey® 4DXT Booster - Features
The Diono Difference
![radian® 3QXT+ - diono® luxury slimline 3 across convertible car seat](https://ucarecdn.com/a9ae6efa-4e0f-47bc-b71b-7c4bab23d691/-/format/auto/-/preview/120x120/-/quality/lighter/safe%20plus%20engineering.png)
Diono Engineering
All Diono boosters are designed and engineered to go over and above safety standards.
![radian® 3QXT+ - diono® luxury slimline 3 across convertible car seat](https://ucarecdn.com/2f7a8af7-2678-4fc7-ae97-d18003adf923/-/format/auto/-/preview/120x120/-/quality/lighter/original%20expandable%20booster.png)
Original expandable booster
The Diono Monterey® is the original expandable booster seat, engineered with both height and width adjustment for a custom fit at every age.
![radian® 3QXT+ - diono® luxury slimline 3 across convertible car seat](https://ucarecdn.com/17d6ac04-0c27-4995-80c8-c9c26ce6ffe5/-/format/auto/-/preview/120x120/-/quality/lighter/8%20years%20one%20booster.png)
8 Years One Booster Seat
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.
![radian® 3QXT+ - diono® luxury slimline 3 across convertible car seat](https://ucarecdn.com/ac97bb96-0fef-4fd8-9441-b760bb912c45/-/format/auto/-/preview/120x120/-/quality/lighter/product-feature-engineering.png)
Designed for every journey
Integrated LATCH connectors and front adjusters make for a simple and safe installation every time.