Frequently Asked Questions
Find answers to common questions about our products and impact.
How do I care for my MiiR drinkware?
We recommend hand washing all powder-coated products with warm soapy water. While some items are top-rack dishwasher safe, hand washing preserves the finish and vacuum seal integrity.
Are your products BPA-free?
Yes, all MiiR products are 100% BPA-free and made from high-quality, medical-grade stainless steel to ensure no metallic taste or chemical leaching.
What is the Give Codeâ„¢?
Every MiiR product includes a Give Codeâ„¢ on the bottom. Register it on our site to see exactly which clean water or environmental project your purchase helped fund.
Does my bottle fit in a standard cup holder?
Most of our narrow-mouth bottles and tumblers are designed to fit in standard vehicle cup holders. Please check the 'Specs' section on individual product pages for exact diameters.
Do you offer custom laser engraving?
Yes, we offer custom co-branding and personalization for corporate orders. Please visit our 'Custom' page for minimum order quantities and lead times.
How long does the insulation last?
Our Thermo 3D® double-wall vacuum insulation technology keeps liquids hot for up to 12 hours and cold for up to 24 hours.