The vacuum insulated bottle with capacity of 750ml/500ml, Suitable for everyone,and can keep hot and cold liquids for about 12 hours,I am sure you will find what you need.The inner liner of this double-layer vacuum thermo bottle is made of 304 stainless steel. The good material ensures a longer service life of the product,Performs better in terms of oxidation resistance and corrosion resistance,and avoids the peculiar smell of the drink.