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Diono Monterey 2XT Latch 2 in 1 High Back Booster Car Seat with Expandable Height & Width, Side Impact Protection, 8 Years 1 Booster, Black

  • Based on 2,039 reviews
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Color: Black


Style: Monterey 2XT


Pattern Name: Solid


Features

  • 8 Years One Booster - for your big kid from 40 - 120 lb. It's all you will ever need.
  • Easy-adjust - 11-position headrest that grows up with your child. Engineered for safety and comfort with 2 layers of Side Impact Protection.
  • One of a kind - easy-adjust expandable backrest allows up to 6.5 in to grow with your big kid. With 2 layers of Side Impact Protection and deep padded cushioning.
  • Two built-in retractable 2-in-1 cup holder and snack tray - keeps your big kid's drink close at hand and stows away their essentials.
  • Our contoured premium soft fabrics - with layered foam padding that provide comfort and support can be easily removed for machine washing.
  • SafePlus belt guides - easy access to seatbelt buckle help your big kid with self buckling - don't forget to check though!
  • Easy, quick and secure installation - engineered with automotive steel LATCH connectors and 2 easy adjust LATCH straps allow you to quickly tighten and secure your booster to your vehicle.
  • Engineered with side impact protection - our rigid shell is reinforced with 2 layers of high-impact aluminum and EPS energy absorbing foam,to protect the head, shoulders, and torso.

Description

Welcome a world of flexibility with Monterey 2XT. Suitable from 40 - 120 lb approx. 4 - 12 years. We all know that children grow at different rates, and not one size fits all. As one of the most flexible car seats youll find, Monterey 2XT is lightweight, super portable and with adjustable headrest and expandable sides, plus easily converts into a backless booster seat, ensuring a proper fit for your little one at every age. Featuring 11 headrest positions and 2 recline positions, Monterey 2XT can adapt quickly to growing children, with plenty of room for shoulders, hips and legs. A simple-to-use dial on the back adjusts the width of the seat up to 20 in wide, while the headrest adjusts up to 6.5 in height with one hand for an easy precise fit. Clever design thinking and award-winning safety features make the Diono difference. Thats why the Monterey 2XT includes our superior side impact protection with aluminum reinforced head support and energy absorbing EPS foam, to accommodate growth spurts without sacrificing protection. Equipped with simple connectors and front adjusters, Monterey 2XT can securely connect to your vehicle in seconds, enhancing safety and stability as well as allowing parents to switch between vehicles with ease. Lovingly engineered for every journey with 2x fold away cup holders to keep drinks or snacks upright and within reach, so both children and parents can sit back and relax.

Brand: Diono


Installation Type: Seat Belt


Material: Alloy Steel, Aluminum, Plastic, Polyethylene


Color: Black


Orientation: Forward Facing


Product Dimensions: ‎17.5 x 22 x 27.2 inches


Item model number: ‎15610


Minimum weight recommendation: ‎40 Pounds


Maximum weight recommendation: ‎120 Pounds


Minimum height recommendation: ‎38.2 Inches


Maximum height recommendation: ‎63 Inches


Material Type: ‎Alloy Steel, Aluminum, Plastic, Polyethylene


Material Composition: ‎96% Polyester, 4% Spandex


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


Number Of Items: ‎1


Style: ‎Monterey 2XT


Number of reclining positions: ‎11


Batteries required: ‎No


Orientation: ‎Forward Facing


Forward-facing minimum child weight: ‎40 Pounds


Forward-facing maximum child weight: ‎120 Pounds


Harness type: ‎Seat Belt


Is portable: ‎Yes


Item Weight: ‎14.33 pounds


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Fits Volvo XC60 and XC90, great for tall kids!
Color: Black Style: Monterey 2XT Pattern Name: Solid
I do wish the limits of the Diono seats with extra protection were as high as this one, but I’m glad they have something that goes to such high height limits, and this still has very good safety features beyond the requirements. Our son is very tall and I was glad to find a seat he could use for such a long time. We’ve had this over a year now—two of these actually, and the quality has been very good. My son also finds the seat very comfortable. We have two extremely hard to fit vehicles—Volvo 2012 XC60 and 2013 XC90, and this seat actually fits and works with the non-removable headrests and jut forward. These are a very good value for the money because of the high height and weight limits. Glad to have found these. ... show more
Reviewed in the United States on April 30, 2025 by K. D.

  • Perfect low profile children's booster seat.
Color: Black Style: Monterey 2XT Pattern Name: Solid
This was a great cost effective choice for us in our 2024 Nissan Pathfinder. We were looking for something with a smaller profile in the captains chairs so the 3rd row was still accessible. I did a lot of research to find something that was capable of fitting our needs and also being safe for our girls, and this seat definitely fit all of our needs. This was a recommended buy from consumer reports with recommended great performance. With the built in latch anchors in the front the installation is very easy. It allows the seat to feel secure and stable while using the cars seat belt. It has dual cup holders that fold away. The material is nice and soft and seems like cleaning will be very easy. Overall we would definitely recommend. ... show more
Reviewed in the United States on June 12, 2024 by Spencer M.

  • Great Booster Seat
This seat was easy to assemble and install in my vehicle. It is well built and heavier than other booster I have encountered. It has two straps with latches to secure the seat to the vehicle unlike some I have encountered and returned. Granddaughter likes it and it appears to provide adequate protection so I would recommend this seat. ... show more
Reviewed in the United States on December 21, 2024 by Arbmoss

  • Great seat for bigger kids!
Color: Black Style: Monterey 2XT Pattern Name: Solid
Works great for my big 6 year old who outgrew another convertible high back booster seat. Super easy to put together and install, and my daughter loves it.
Reviewed in the United States on June 18, 2025 by Prissy

  • Great Booster Seat
We have two kids and both of them have one. They both find it comfortable. I found it easy to put together and get in the car. Lots of adjustability without being complicated at all. Works great with the cars seatbelt, so getting in and out is easy. Really, there's nothing to dislike.
Reviewed in the United States on September 27, 2023 by Jay Scott

  • Great seat but…
I love Diono seats (even if they tend to be complicated to install). This ine is good but when the headset is up and the seat is in the middle of the back seat it blocks the rear view mirror since the wings are very big (so they provide more head protection to the child). I was able to lower it an inch and it is better, but when my son grows i will have to move this seat to one side. ... show more
Reviewed in the United States on September 23, 2024 by Ok

  • So good we bought another
The daughter outgrew her baby car seat. We researched and this one had some great features, looked nice enough, and can eventually just become a booster, giving it a little more life over the long run- but in the meantime it provides the head guards and backing while she’s still of the size where those are needed. Cup holders are a must, and this has them! Once it’s securely anchored, she’s using the vehicles seat belt herself, and usually manages fine in the Odyssey, but struggles to reach the buckle in the CR-V, so as I’m wary of getting an extension, I just buckle her in still. As mentioned, I bought another for the other vehicle- just so I can avoid moving this one back and forth for any quick trips or daddy-daughter outings. Once the son is older and needs a bigger seat, I may move the second back to the van, but would strongly consider buying at least one or two more just for convenience. ... show more
Reviewed in the United States on October 24, 2024 by eternalgreenknight

  • Easy to install and comfortable
Recently switched to booster seat as the car seat seatbelt were out of place and too low on the shoulder and it was time to get a new one. The car seat was seat to install and assemble. I just did a quick video search on website and can figure it out easily. The seats are wide and the head pieces are in great position ... show more
Reviewed in the United States on November 1, 2023 by __ceeceeH

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