Miir gives 3% of revenue to trackable giving projects. Every MiiR product comes with a Give Code that allows you to experience the story behind your purchase. Flip. Register. Follow.. The Travel Tumbler keeps your morning coffee or tea hot or cold longer. Thermo 3D ? Double Wall Vacuum Insulation Technology - Keeps your drink hot up to 12 hours and cold up to 24 hours. This Travel Tumbler won't sweat or be hot to touch no matter the temperature of your drink. 18/8 medical grade stainless steel doesn't transfer flavor or leave you with a metal aftertaste in your mouth. Hardshell? Powder coat has great color and prevents peeling. BPA free. The leakproof locking lid makes for easy sipping. Compatible with most car and truck cup holders. 16 oz. capacity. Hand wash recommended. For best results, wash your MiiR product with a long-handled soft bristle brush, soap, and warm water.