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Diono Monterey Booster Car Seat - Purple

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Diono Monterey Booster Car Seat - Purple - Diono  - Babies"R"Us
Diono Monterey Booster Car Seat - Purple - Diono  - Babies"R"Us
Diono Monterey Booster Car Seat - Purple - Diono  - Babies"R"Us
  • $149.99
  • $99.98
  • Ship-To-Home
  • Free Store Pickup
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When your child is ready to graduate to a bigger seat, he or she can transition with safety and comfort to the Monterey Expandable Booster. This versatile model expands in height and width, making it an ideal fit for a growing child. The Monterey is designed for security and longevity with features like aluminum reinforced seat back and sides, an angled and reinforced seat bottom, and a headrest and side walls with energy absorbing EPS foam.

  • Width and height can adjust to accommodate growing kids
  • Aluminum reinforced back and sides create a sturdy foundation
  • Designed with energy absorbing EPS foam to absorb impacts
  • Easy-to-clean cover
  • Cushy AirTek foam offers breathable comfort
  • Removable back and two recline positions adapt to your child
  • Features secure LATCH installation
  • Two retractable cup holders hold drinks or toys
  • Age/Weight Requirements: 30 - 120 pounds; 38 - 63 inches tall
  • Assembly Requirements: Some assembly required
  • Warranty: One-year limited warranty

Included in the Box

Diono Monterey Purple Expandable Booster and instruction manual.

Trademark Information:
Monterey™ Booster

Monterey Expandable Booster Seat (Purple) Product Image


Aluminum-Reinforced Seat

EPS Foam and Aluminum Reinforcements for Safety

The Monterey features an aluminum reinforced seat back and sides, which provide a reliable, strong foundation. Energy absorbing EPS foam, which lines the extra deep reinforced sides and adjustable headrest, provides full side impact protection. In addition, the seat bottom is reinforced for increased lap belt safety and angled to prevent submarining. LATCH connectors keep the Monterey secure in the vehicle when the seat is not occupied (LATCH use is optional).

Accomodates Growing Children

Adjustable Height and Width Means Seat Grows with Child

This booster seat is designed for children between 30 to 120 pounds and 38 to 63 inches tall. As children grow, the Monterey can be adjusted with the dial on the seat back, which increases the seat's width to accommodate a child's shoulders up to 20 inches wide. The adjustable headrest offers 11 different height settings.

Additionally, the Monterey can be used as a backless booster.

Plush Cloth Surface

AirTek Foam Provides Comfy Ride

AirTek foam padding and a plush cloth surface cushion your child, keeping them comfortable as they ride. AirTek padding provides luxurious cushioning with exceptional breathability, and the cloth surface feels soft and gentle against your child's skin. In addition, two recline positions allow the Monterey to fit a wide variety of vehicle seats and further enhance comfort.

Two Cup Holders

Convenient Features for Child and Parents

The seat back is removable so it can be packed flat, making storage or travel a breeze. Two extra deep cup holders are angled to keep drinks upright and provide a place to keep toys and other items within easy reach. When not needed, both cup holders fold out of the way. Rubber bottom grips protect your vehicle's upholstery and ensure no-slip installation.

NCAP Crash Tested

Testing and Warranty Information

This booster seat surpasses federal crash test standards and meets NCAP standards, the industry benchmark for verifying child seat performance in severe accident conditions. The seat has a generous 10-year life span. The Diono Monterey Expandable Booster is backed by a manufacturer's limited one-year warranty.

Product Description

The Diono Monterey is there when your child is ready to graduate to a booster, the high-back Monterey lets you make the transition with safety and comfort. The adjustable design accommodates a growing child up to 120 lbs and 63? tall. Deep, reinforced sides are lined with energy-absorbing EPS foam for side-impact protection. Easily increase the width of the expandable seatback to fit a child's shoulders up to 20? wide, and adjust the 11-position headrest for a comfortable, custom fit. Optional use of the integrated LATCH connectors allow for a safe and secure installation in seconds. The reinforced seat bottom has extra length for leg support and features thick, AirTek foam and tapered sides for total comfort. Dual cup holders are extra-deep and angled to keep drinks upright. Monterey packs flat for travel and storage and can also be used as a backless booster.


  • The Diono Monterey fits children 30 lb to 120 lb and 38" to 63" in height
  • Extra deep, reinforced sides
  • Angled, reinforced seat bottom prevents submarining
  • LATCH system for secure installation (LATCH use not required)
  • Adjustable width: Expandable seat back width fits shoulders up to 20

Additional Info





30 lbs

120 lbs

19.4 pounds

18.7 x 17.2 x 10.8

How to Get It

  • This item can be shipped to the entire United States including Alaska, Hawaii, and all U.S. territories including Puerto Rico
  • This item can also be shipped to APO/FPO addresses and to P.O. Boxes in all 50 states
  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • This item will ship by itself

  • This item may be shipped via Standard Shipping, Expedited Shipping or Express Shipping
  • Please Note: Some addresses are eligible for Standard Shipping only (APO/FPO, P.O. Boxes, U.S. Territories and Puerto Rico)

(learn more):

  • This item is sold online only (not sold in stores)
  • Orders placed for Store Pickup will receive online pricing and promotions
  • In-stock status is approximate and may not reflect recent sales
  • Not all items are carried at all stores. Please click the "Select a store" link to check product availability
This item may be shipped in the manufacturer's original packaging, which could reveal the contents of the box

Average Customer Rating:

by PowerReviews
Diono Monterey Booster Car Seat - Purple

(based on 6 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 6 customers

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Displaying reviews 1-6

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Best booster there is!

By Mamaofboys

from Indiana

Comments about Diono Monterey Booster Car Seat - Purple:

This booster is wonderdul. The padding is comfortable and the seat is solid and safe. Keep little ones positoned appropriately when using a lap belt.

Comment on this review


Fabulous seat!

By tampamommy

from Tampa, FL, United States

Comments about Diono Monterey Booster Car Seat - Purple:

I bought this seat for my daughter who was too tall for her other seat, but not ready for a booster. I love how the seat expands in both width and height. It is super easy to install and adjust when they grow. It has an easy to clean cover and handy cup holders. It is also easy to take the back off and convert it to a booster seat. It's also very nice that the booster can stay latched into your car's seat. I highly recommend this seat!

Comment on this review

(1 of 1 customers found this review helpful)


so comfortable

By Krystal

from Alberta, Canada

Comments about Diono Monterey Booster Car Seat - Purple:

We bought this seat for our daughter and really love it. The latch system is a huge comfort for me as a Mom knowing that the seat is very secure. I feel bad for our son who is in a backless booster and the padding between the two feels like he isn't sitting on anything. I hope that Diono will make a backless booster soon!

Comment on this review


I need one for my second car!!

By Mom to the Princess

from New Jersey

About Me Brand Buyer

Verified Buyer


  • Easy To Use
  • Effective


    Best Uses

    • Daily Use
    • On-the-go

    Comments about Diono Monterey Booster Car Seat - Purple:

    Sturdy, comfortable, perfect. Slight recline allows a nap without having her head in her lap.

    • My Beauty Routine Takes:
    • 10 Minutes

    Comment on this review

    (2 of 2 customers found this review helpful)


    Our Favorite Booster

    By Car Seat Tech Mommy of 2

    from Philly


    • Comfortable


      Best Uses

        Comments about Diono Monterey Booster Car Seat - Purple:

        This is our favorite booster. It expands up and out to the sides so it really can keep your child comfortable until they are truly ready to use an adult seatbelt alone. Also converts to a backless booster when they outgrow the height of the back. There are benefits to using the back (side impact protect) so please continue to use that until your child outgrows it. Your child should be harnessed until around kindergarten age for a variety of reasons, including spine and pelvis strength. You should continue to use a booster until your child can pass the 5-step test (simply google it for details) in their seating position. A child may pass the 5-step in one of your family's vehicles before another. Boosters do a tremendous amount to keep children safe and this booster is wonderful. Love that is latches in for a secure connection to the car. That is more for convenience than safety but it's really nice to have. Overall, I highly recommend this booster. My next favorite is the Britax parkway SGL, which also latches to the car. (The SG does not.) Both are wonderful but the monterey seems to expand more and would definitely be the better choice for heaftier kids.

        • Was this a gift?:
        • No

        Comment on this review

        (1 of 1 customers found this review helpful)


        Great Booster

        By Jessica

        from Mesa, AZ

        About Me Parent of Two or More Children

        Verified Buyer


        • Comfortable
        • Easy to Adjust
        • Easy to Clean
        • Easy to install
        • Safe
        • Sturdy
        • Stylish


        • Not Cheap

        Best Uses

        • 4
        • Toddlers

        Comments about Diono Monterey Booster Car Seat - Purple:

        This carseat is great! It has the latch system so it stays in and installs super easy while being secure and is easy enough for my daughter to use and buckle herself in and out.

        Comment on this review

        Displaying reviews 1-6

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        5.0 stars

        $149.99 $99.98