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ITEM# 15081

Diono Monterey High Back Belt Positioning Booster Car Seat - Surf

Share Diono Monterey High Back Belt Positioning Booster Car Seat - Surf

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Overprotective in all the right ways, the Monterey is a full-featured, expandable high-back booster seat designed to fit growing children 40 lb to 120 lb. The adjustable head rest and deep, aluminum reinforced sides are lined with energy absorbing EPS foam for side impact protection and the reinforced seat bottom provides extra lap belt safety. This significantly strengthens the Monterey and provides superior defense against crash forces.

A simple-to-use dial on the back adjusts the width of the seat to fit a child’s shoulders up to 20" wide. The 11-position headrest gives ultimate flexibility and adjusts up to 6.5" in height with one hand for an easy, precise fit. As a fixed-position booster, integrated LATCH connectors and front adjusters allow for a safe and secure installation in seconds (LATCH use is optional) and keeps the seat in position when not in use.

The seat bottom has extra length for leg support and features thick AirTek™ foam and tapered sides for total comfort. Retractable, dual cup holders are extra-deep and angled to keep drinks upright.

Monterey can also be used as a backless booster and packs flat for travel and storage.

Key Features

  • Fits children 40 lb to 120 lb and 38" to 63" in height
  • Extra-deep side walls are reinforced with aluminum and lined with EPS foam for superior side impact protection
  • Energy absorbing AirTek™ foam provides superior cushioning and increased airflow for comfortable ride
  • Adjustable width: expandable seat back fits shoulders up to 20”
  • Adjustable height: 11 position headrest adjusts up to 6.5" with one hand
  • Can also be used as a backless booster

Additional Features

  • LATCH system for secure installation (LATCH use not required)
  • Angled, reinforced seat bottom prevents submarining
  • Longer seat bottom for proper leg support with cushioned comfort
  • 2 recline positions for comfort and to fit all vehicle seat shapes
  • Retractable cup holders are extra deep to keep drinks upright
  • Packs flat for travel and storage
  • 1 year warranty

out of 5.0
10 Reviews
Ratings Snapshot
5 Star
70% (7)
4 Star
30% (3)
3 Star
0% (0)
2 Star
0% (0)
1 Star
0% (0)
of Reviewers
Love it!
By joanofnark
from MN
on December 24, 2016
I love this seat! When my 9yo turned 6 we tried out some cheaper options, but he wasn't a fan of any. Then we bought him a Monterey and it was an instant hit! \When we crashed our van we replaced his Monterey with a new one. I believe that the price is fair for the quality of the product you're getting. I love the adjustable width so that even big kids won't feel cramped. Overall, it's a wonderful product and I would certainly buy it again!
This product review was collected by the manufacturer.
Happy with the highback
By Fanta
from Fairfield County, CT
on August 22, 2016
When we finally graduated to a high back booster, I chose Diono because of the aluminum frame and the latch. I love this booster because it's easy to put together and install, and my kid loves the cup holders. The cover washes easily and is good quality. The only drawback is I wish there were a latch on top to keep it from rocking, and there are 12 tabs to keep the cover in place. It's just too much and it's kind of a mystery when you're trying to put the cover back on where they all go. Nevertheless, this is the brand that I've recommended to all my friends. The price point is reasonable too; I have one in both cars.
This product review was collected by the manufacturer.
Worth Every Penny
By Sara
from Savannah, GA
on March 26, 2016
Verified Buyer
Quick delivery-Easy to put together-Very comfortable!This is my 5 year olds first booster, she is able to buckle and unbuckle herself very easily! I love love love how this seat will grow with my daughter, she is quite petite, barley over the 40 pound requirement, when I put this seat on the smallest settings, it fits her like a glove!! This seat lines the seat belt perfectly across her lap and chest. I would buy it again in a heartbeat!
Customer Images
  • Comfortable
  • Latch system
  • Grows with child
Love it!!
By Jessica
from Summerville, SC
on February 24, 2016
Verified Buyer
Sturdy, safe, so easy to install and comfortable for my daughter!
Great seat
By Ali
from Omaha, NE
on September 4, 2015
Seat seems very well made and is easy to use, my son loves it. I did have to contact Diono customer service as they have updated the belt guides and the manual has outdated information. They were helpful and polite.
  • Easy to use, child can buckle/unbuckle himself
Best Uses
  • Older kids,
My daughter loves it
By Savannah G.
from Nevada
on June 18, 2015
Verified Buyer
I'm not buying another for my son
Happy with this seat
By Sam
from NY
on June 2, 2015
Verified Buyer
We've had our Monterey for about 2 weeks now. Overall, we like the seat. My daughter struggles to buckle on her own, but she's getting there. I figured that could be an issue with any seat. She's super happy with the Bloom color.
Great deal
By Georgene H.
from Oregon
on April 18, 2013
Verified Buyer
My daughter LOVES her big girl booster seat. NO complaints at all!
Great Seat
By Cari
from Davenport, Iowa
on February 13, 2013
Verified Buyer
My daughter loves her new "big girl" seat, especially the color. I love that it still uses the latch clips so it doesn't slide all over. Great quality, love the cup holders and that it has side impact protection as well.
from Florida
on October 16, 2012
Verified Buyer
This is the best booster seat, your child can fall asleep and thier head won't fall over and the seat sits very well and with the harness on the back that hook into the seat it keeps the seat steady where it doesn't move around like other booster seats do.

1 Question & 1 Answer
from Florida asked:
March 11, 2016
What is the width of the base of the seat and what is the smallest width you can adjust the wings to?
the width of the base from armrest to armrest is 19" (this is the widest) and this is without the cupholders attached. the seat "wings" start at 19" and they expand to 22.5"
Submitted by: Customer Service on March 11, 2016

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