Features: Double-wall vacuum insulation keeps your beverages cold for up to 24 hours Stainless steel construction offers long-lasting durability FreeSip lid includes a built-in straw for easy drinking The wide mouth opening lets you take bigger swigs and easily fits ice cubes The lid flips open with a button and locks shut for easy transportation Leak-proof design helps avoid any unwanted messes and spills Hinged loop flips up for easy carrying and tucks away when not in use Base fits most cup holders BPA and phthalate free Hand wash cup, dishwasher-safe lid; not for use with hot liquids Capacity: 40 oz.