Monterey XT Booster


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Brand Diono

Four good reasons for our child safety seats! 

  • Unmatched safety: As your child grows and spreads their wings, your love grows stronger which is why you overprotect them with a booster seat.
  • Highest comfort: Your big kid has a mind of their own and will expect only the best in comfort and style. Why should they sacrifice while they are on their journey?
  • Every marvelous moment: Sometimes the joy of the journey has hazards along the way. Side impact protection and reinforced materials provides added protection.
  • Journey: The joy of riding along the road takes them a while to grow. Multiple adjustments allow your child to use the booster seat up to age 12.


Dependable safety for growing children

The monterey® XT booster keeps children from 18-54kg and up to 160cm tall safe and secure with aluminum reinforced sides lined with energy absorbing EPS foam. This seat was designed to accommodate growth spurts without sacrificing protection.

We know how to keep back seat snackers happy. This booster comes with retractable cup holders to keep drinks or snacks upright and within reach.

Side impact protection

This booster comes with deep, aluminum reinforced sidewalls that provide excellent side impact protection, and the energy absorbing EPS foam surrounds your child for ultimate safety.

Adjustable, supported fit

With 11 headrest positions, this booster adjusts for a proper fit and improved comfort for growing children. A simple-to-use dial on the back adjusts the width of the seat to fit a child’s shoulders up to 20″ wide.

Quick, secure installation

Install the monterey® XT booster securely and in seconds thanks to integrated LATCH connectors and front adjusters. Monterey XT can also be used as a backless booster and packs flat for travel and storage. 

Key Features

  • Fits children from 40-120 pounds and 38-63 inches tall

  • Extra-deep aluminum reinforced sidewalls add side impact protection

  • EPS foam lining for more safety and comfort

  • Adjustable back expands to fit shoulders up to 20 inches wide

  • Adjustable headrest offers 11 positions up to 63 inches tall

  • Easily converts to backless booster

  • LATCH system securely installs in seconds, but LATCH use is not required

  • Angled bottom seat prevents submarining

  • Longer bottom seat supports growing legs

  • Retractable cup and snack holders fold out for convenience

  • Flat packing for travel and easy storage 

“I own the monterey XT booster by diono in heather grey. I love that it is lightweight if we need to switch it between my husband and my vehicles. It is a great investment because it'll carry you through as your child grows. The headrest easily moves up and down and the side panels can be expanded by quick and easy rotation on the back. We really like this booster seat and trust that it will keep our child comfortable and most of all safe.”

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