Because it changes color with the addition of ice-cold liquid, this Color-changing Stainless Steel Mood Bottle is like two bottles in one! The 26 oz. stainless steel bottle starts out white and gradually changes to a color when ice is added through the wide-mouth black lid with flip-top straw. When you customize it by adding your choice of one-color imprint, you'll have a really cool favor to match your Prom theme, Homecoming dance, Senior Party, or other school event. This mood bottle also makes a great school fundraiser or fun addition to your school store.