• Thermo 3D ™ Double Wall Vacuum Insulation Technology
• 18/8 Medical grade stainless steel doesn’t transfer flavor & no metal aftertaste
• Hardshell™ powder coat (colored tumblers)
• Lid and cup are BPA free. Press-on lid prevents splashes and keeps drinks warm longer
• Cup holder compatible
• Hand wash is recommended; however, the cup is top-rack dishwasher safe
• Cool Feature: Each product is marked with a code on the bottom. You can register the code on the website and track the environmental project you supported with your purchase!

Every MIIR product is designed in-house in America and emphasizes four design principles: minimal, sustainable, functional, and enduring.

Every MIIR product sold helps fund transparent giving projects at the intersection of communities and the environment. With design, generosity, and sustainability at MIIR’s core, the company actively contributes to the flourishing of people and planet. Each year, they invest a portion of top-line revenue into trusted non-profit organizations who work to uplift communities while benefiting the health of our natural environments.
As of 2021, MIIR has given over $2.6 million, empowering over 200 organizations working across 26 countries. The more they grow, the more they give.
This philosophy seems to be a good reason to support such a business.