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Monterey® XT

£59.99 - £109.99

Group 2/3 High Back Booster Seat

£59.99 - £109.99
or 3 interest-free payments of £20.00. Learn More

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Monterey® XT

The original expandable booster, with easy one hand height and width adjustment to provide 69% increase in occupancy space. Suitable from 15 - 36 kg, approx. 4 - 12 years.


  • THE ORIGINAL EXPANDABLE BOOSTER SEAT - 11 headrest positions and expandable side walls provides 69% increase in occupancy space as your child grows.
  • TWO SPACE SAVING CUP HOLDERS - Features two retractable cup holders to hold those important road trip drinks and snacks.
  • SIDE IMPACT PROTECTION - Extra deep aluminum reinforced sides provides side impact protection for their head, shoulders and torso.
  • QUICK & SECURE INSTALLATION - Equipped with FIX connectors and front adjusters to securely connect the booster seat to your vehicle in seconds, enhancing safety and stability.
  • SUPER LIGHTWEIGHT - Weighing only 5.8 kg, the Monterey® XT booster seat is super light allowing you to move the seat between vehicles with ease.

Product Specs

  • Seat Weight: 6.30 kg
  • Product Height: 69 cm
  • Product Width: 50.5 cm
  • Minimum User Weight: 15 kg
  • Maximum User Weight: 36 kg
  • Minimum User Weight - Forward Facing: 15 kg
  • Maximum User Weight - Forward Facing: 36 kg
  • Maximum User Height: 150 cm
  • Product Depth: 41 cm

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months standard warranty

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 15 - 36 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 FIX connectors and front adjusters make for a simple and safe installation every time.