Diono Monterey 5iST FixSafe High Back Booster Car Seat with Expandable Height and Width, Compact Fold to Full Size Booster, Foldable, Portable Booster for Go-Anywhere Travel, Yellow Mineral
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Diono Monterey 5iST FixSafe High Back Booster Car Seat with Expandable Height and Width, Compact Fold to Full Size Booster, Foldable, Portable Booster for Go-Anywhere Travel, Yellow Mineral

3.9/5
Product ID: 369729417
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Details

  • Brand
    Diono
  • Installation Type
    Seat Belt
  • Material
    Alloy Steel
  • Color
    Yellow Mineral
  • Orientation
    Forward Facing
🎒Compact fold to carry-on size
⚙️12-position adjustable headrest & backrest
🛡️8 layers side impact protection

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Description

🛡️ Safety Meets Style: The Booster That Grows, Protects, and Travels With You!

  • GROW WITH YOU COMFORT - SafePlus 12-position headrest and backrest adapt seamlessly as your child grows from 40 to 120 lbs.
  • ULTIMATE SAFETY ARMOR - Engineered with 8 layers of high-impact aluminum and EPS foam for unmatched side impact protection.
  • PREMIUM COMFORT FABRICS - Soft, contoured, machine-washable covers with layered foam padding ensure all-day comfort and easy maintenance.
  • TRAVEL READY PORTABILITY - Folds down to carry-on size for effortless storage and on-the-go convenience.
  • PARENT APPROVED CONVENIENCE - One-hand easy adjust, quick-release latch, and built-in removable cup holder keep every trip smooth and hassle-free.

The Diono Monterey 5iST FixSafe is a forward-facing high-back booster designed for kids 40-120 lbs, featuring a 12-position adjustable headrest and backrest, 8 layers of side impact protection with reinforced aluminum and EPS foam, and a compact fold for easy portability. With premium machine-washable fabrics, a removable cup holder, and quick-install LATCH connectors, it combines safety, comfort, and convenience for busy families on the move.

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Specifications

Product Dimensions15 x 17 x 24.8 inches
Item model number15705
Is Discontinued By ManufacturerNo
Minimum weight recommendation40 Pounds
Maximum weight recommendation120 Pounds
Minimum height recommendation38.2 Inches
Maximum height recommendation63 Inches
Material TypeAlloy Steel, Polypropylene, Plastic, Polystyrene
Material Composition100% Polyester
Care instructionsCovers: Machine wash cold, line dry. Shell and Components: Spot clean
Additional product featuresTransforms in seconds from a compact fold to a full-size booster seat, without compromising safety or comfort
Number of reclining positions12
Batteries requiredNo
OrientationForward Facing
Forward-facing minimum child weight40 Pounds
Forward-facing maximum child weight120 Pounds
Harness typeSeat Belt
Is portableYes
Item Weight18.74 pounds

Have a Question? See What Others Asked

can this be used by a young adult with autism and sensory issues ......?
Will this booster work in the center seat?
Does this seat also have a tether top anchor?
What is the depth of the seat when installed? How much room does the child have on the seat when they are sitting?

Reviews

3.9

All from verified purchases

A**A

Good item but cannot benefit from all features

Good car seat, great material, strong but I have a jeep patriot, cannot benefit on moving the head rest because of the way of the jeep’s seat; also, the car seat gets tight to the back and block the jeep seatbelt making difficult each connection. I had to buy a seatbelt extension to be able to connect it.

M**M

Not for tall, slim kids.

The concept is good, and I love the travel/foldability of it. Unfortunately it takes design cues from general clothing sizes of small, medium and large - meaning if a child had a tiny waist, he/she must be short. Or, if tall, they must be extremely wide. The height and width expansion cannot be adjusted separately. There’s no option for *just* raising the height. To accommodate a child 48” tall the kid probably needs to be 60+ pounds. My high school son, obviously too old for a booster, is 5’6” & 116lbs of muscle didn’t even come close to needing the seat expansion at the highest headrest setting. The idea is ok, but clearly designed for todays *ahem* “larger” children, not super slim or even low-average BMI kids. FWIW, I’m 5’7” and 140. I fit in the seat width wise. How is it supposed to fit my 1st grader who is 100lbs lighter than me?!?My kid is thin, 48” and 40.5 pounds soaking wet. She *barely* meets the regulation weight for a booster but since our car got the best safety rating I relented & said she can use a high back booster in that car. I regret it. Returning it. I need a thin, slim seat to fit in a model 3; one safe enough for local streets (under 45mph/to - from school) - this was almost perfect but not quite.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Diono Monterey 5ist Fixsafe High Back Booster Car Seat Expandable | Desertcart GB