Vacuum insulated water bottle 13

A vacuum-insulated water bottle is a type of water bottle designed to keep liquids hot or cold for an extended period of time. It consists of two layers of stainless steel with a vacuum-sealed gap in between. This vacuum insulation prevents heat transfer through convection or conduction, effectively maintaining the temperature of the liquid inside the bottle.

These bottles are popular for outdoor activities, travel, and everyday use because they can keep beverages hot for up to 12 hours or cold for up to 24 hours, depending on the brand and model. They come in various sizes, shapes, and designs, with features such as leak-proof lids, easy-to-carry handles, and compatibility with car cup holders.