Patented FreeSip® spout designed for either sipping upright through the built-in straw or tilting back to swig from the spout opening Protective push-to-open lid keeps the spout clean Convenient carry loop doubles as a lock Double-wall vacuum insulation keeps your beverages cold for up to 24 hours The wide mouth opening for cleaning and adding ice Stainless steel construction offers long-lasting durability Leak-proof design helps avoid any unwanted messes and spills Base fits most cup holders BPA and phthalate free Hand wash cup, dishwasher-safe lid; not for use with hot liquids Capacity: 32 oz.