JMY VACCUM FLASK THERMOS W/CUP RAMDON COLOR Drinkware Tumbler 2645 SOLD BY (1PC) Portable Water Bottles Mug

•A Thermos flask is a container that is used to keep hot liquids hot and cold liquids cold. It has a double-walled construction with vacuum insulation between the walls. This makes it an ideal choice for bringing along food or drinks when you are on the go.

•You use a thermos flask to keep hot drinks hot, like coffee or tea, as well as soup, if you like hot soup. You also use it to keep cold drinks cold, or to keep milk from spoiling. You can also use it to keep Ice cubes from melting so fast.

•It is used for keeping hot liquid hot for a long time. It also keeps cold liquids cold for a long time