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Diono Diono - Monterey XT Booster Seat

Diono - Monterey XT Booster Seat
Diono - Monterey XT Booster Seat - Dark Grey
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  • Safety that grows with your child
  • Dynamic head & shoulder protection
  • Innovative multi-use safety & easy install
  • Traveling the world in comfort & safety with a UAS system for secure installation

About the Diono - Monterey XT Booster Seat

Dependable safety for growing children, the Monterey® XT Booster is super portable, easy to store and lightweight to take with you on every adventure. Your big kid will love traveling with two swivel cup holders. Sometimes the joy of the journey has hazards along the way, and that’s why the Monterey® XT uses reinforced materials and has side impact protection to provide enhanced safety as your child grows. Diono designers engineered this booster to accommodate growth spurts without sacrificing on protection, with 11 headrest positions, the Monterey adjusts for a superior fit and the larger base seat supports growing legs letting your child sit back and enjoy the ride.


  • Safety that grows with your child: The Monterey XT Booster is an innovative multi-use child car seat that protects kids throughout childhood and makes traveling with toddlers as safe and easy as possible.
  • Dynamic head & shoulder protection: Engineered with adjustable 11-position headrest and 20” max-width shoulder adjustment dial, Monterey protects with reinforced energy-absorbing EPS foam-lined deep aluminum sidewalls for enhanced side impact protection.
  • Innovative multi-use safety & easy install: Utilizing integrated LATCH connectors and front adjusters to secure kids in place, our 2-in-1 booster seat features a spacious comfortably-contoured leg supporting base with space-saving retractable cup holders.
  • Traveling the world in comfort & safety: Created with a soft easily removable premium lush fabric cover, the lightweight Monterey XT booster safety seat easily converts to a backless booster to accommodate growing kids. Folds flat for fast/easy traveling. UAS system for secure installation (UAS use not required).

Created to accommodate growing children 38” to 63” tall weighing 40 to 120 lbs.

Diono - Monterey XT Booster Seat Specs

Max Weight Capacity:
120 lb.

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