Features:Double-wall vacuum insulation keeps your beverages cold for up to 24 hoursStainless steel construction offers long-lasting durabilityFreeSip® lid includes a built-in straw for easy drinkingThe wide mouth opening lets you take bigger swigs and easily fits ice cubesThe lid flips open with a button and locks shut for easy transportationLeak-proof design helps avoid any unwanted messes and spillsHinged loop flips up for easy carrying and tucks away when not in useBase fits most cup holdersBPA and phthalate freeHand wash cup, dishwasher-safe lid; not for use with hot liquidsCapacity: 40 oz.