Fusion Size Guide

FUSION is our new multi-purpose Drink Bottle & Cup system, that allows you to make your Montii, your way! It's a huge change, so we have created a size guide to help you choose the right FUSION for you.

Flip through the pages of our handy size guide below to see what fits.


Need some help? We’ve got you covered! 

Learn how to assemble + care for your MontiiCo FUSION here.