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Diono Monterey 6XT SafePlus High-Back Booster, Adjustable Height and Width, Slim Fit, Easy Installation, Fits Children 40-120 lbs. (Yellow Mineral)

  • Based on 11 reviews
Condition: New
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Availability: 14 left in stock
Fulfilled by Amazon

Arrives Saturday, Sep 6
Order within 18 hours and 51 minutes
Available payment plans shown during checkout

Color: Yellow Mineral


Features

  • 8 Years One Booster - For your big kid from 40-120 lb. One-hand easy adjust and SafePlus 12-position headrest/backrest that grows up with your child
  • Engineered with our most side impact protection - Designed for safety and comfort with eight layers of Side Impact Protection
  • Built for comfort for every size - Our seat has improved comfort and premium layered padding on the seat base and back rest for an extra-cushioned ride
  • One removable cup holder - Keeps your big kid's drink close at hand
  • SafePlus belt guides - Easy access to seatbelt buckle help your big kid with self-buckling - don't forget to check though
  • Unbox, unfold, install, adjust and go - All in two minutes or less. Thanks to the SafePlus soft LATCH connection, installation is a breeze

Brand: Diono


Installation Type: Seat Belt


Color: Yellow Mineral


Orientation: Forward Facing


Product Dimensions: 16.5"D x 17.7"W x 24.8"H


Product Dimensions: ‎16.5 x 17.7 x 24.8 inches


Item model number: ‎15714


Minimum weight recommendation: ‎40 Pounds


Maximum weight recommendation: ‎120 Pounds


Minimum height recommendation: ‎38.2 Inches


Maximum height recommendation: ‎63 Inches


Material Composition: ‎Lamination Foam 100% Polyurethane. Two-Tone Wicking 100% Polyester. Lycra 93% Polyester, 7% Spandex. Memory Foam 100% Polyurethane.


Care instructions: ‎Covers Machine wash cold, dry flat. Shell and Components Spot clean


Number of reclining positions: ‎12


Batteries required: ‎No


Orientation: ‎Forward Facing


Harness type: ‎Seat Belt


Item Weight: ‎15.7 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Durable and packable
Long time Diono fans and these did not disappoint! 2 of these can fold down and fit into 1 car seat carrier with room to spare! They aren’t insanely heavy but also feel very durable. I have taller kids and they fit them wonderfully. As you raise the headrest the sides fan out. It’s impossible to have 3 seats across. We have a Jeep Grand Cherokee and the middle seat does become nonexistent but we were able to get one of these and 2 Diono 3QXT in that car. ... show more
Reviewed in the United States on June 23, 2025 by AR

  • Nice car seat
Great system
Reviewed in the United States on June 8, 2025 by Breanna Swanberg

  • Finally found a high back booster that works!!!
Color: Purple Plum
After ordering two other high back boosters and both of them not working in our Ford Expedition, this one works. Our school pickup line moves fast so 6yr old has to jump in and get strapped in herself. Our seat belt plugs are deep in the seats. She has to bend over quite a bit to reach them as she’s small. The seat must be narrow which this one is. Also requires a latch system so the seat doesn’t move around and cover the plug. She has to pull the seatbelt out all the way and other car seat seatbelt guides at the shoulder would cause the seatbelt to lock up. Anyways she can operate this one by herself 99% of the time and we’re happy with the quality. ... show more
Reviewed in the United States on February 22, 2025 by JC

  • Great booster seat!
Very happy with this booster seat, I like that it has an attached back.
Reviewed in the United States on April 25, 2025 by Kimberly

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