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Monterey® 5iST i-Size

Monterey® 5iST i-Size

Welcome To Travel Reinvented at KIND + JUGEND

Family Travel is Changing

We took everything that’s great about the Monterey family and made it our mission to improve the mobility, functionality, and installation of the seat; creating a new type of booster seat tailored to the needs of today’s parents.

For us, it simply is travel reinvented.

Travel Reinvented

As more young families make their home in the city, the team at Diono asked.. “How do we simplify travel, so parents and children can take safety with them wherever they go?” Thus birthed the transformational Monterey® 5iST FixSafe® , a travel seat integrated with easy to use features and built with safety in mind.

Diono won prestigious iF DESIGN AWARDS in product design for the Monterey® 5iST FixSafe™ chosen by the 98-member jury, made up of independent experts from all over the world in 2021 and 2022.

Honouring the first collaboration between Diono and Berlin based design studio, WhiteID, Monterey® 5iST FixSafe™ combined our signature world-class American engineering with forward-thinking, edgy European design to create the next generation of child car seat. Monterey® 5iST FixSafe™ continued to turn heads across Europe, catching the attention of industry experts and innovators of the technology of tomorrow. 

This time, Design Center for the Baden-Württemberg International Design Award Focus Open awarded Monterey® 5iST FixSafe™ winner of the Gold Focus Open 2021. 

Here in the US, definitive voice for millennial parents, The Bump, announced the winners of its ninth annual The Bump Best of Baby Awards, honoring the most outstanding baby and new parent products for 2021. 

In 2022 Diono won a prestigious Red Dot Design Award and most recent winners of the National Parenting Product Awards 2022.

For more information on our award winning seat, contact the Diono Sales team -


The next generation of expandable boosters

Designed for ultimate portability, Monterey® 5 iST FixSafe™ i-Size transforms in seconds.


Compact fold to full size booster in seconds

25% smaller than the average booster seat without compromising safety or comfort.


Expands in height and width

One-hand automatic height and width adjustment provides 85% more room as your child grows.


FixSafe™ rigid latch connectors

Easy install with FixSafe™ rigid latch connectors for a safe and secure installation every time.


Safe+® Engineering

Includes 8 layers Safe+® side impact protection and rigorous crash testing to create the most advanced Monterey® ever.

Color The Journey®

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