With a 210-milliliter capacity, the Wacaco Nanovessel Vacuum-Insulated Flask gives you more than most bottles do. In fact, this container is a tumbler, tea infuser, and water bottle all in one. This three-in-one product is essential for backpacking trips and days at the office alike. Made of stainless steel 304, this is the way to keep hot drinks hot and cold drinks cold for hours on end. Plus, the Nanovessel makes it easy to infuse tea thanks to the built-in mesh filter. Moreover, this vacuum-insulated flask is easy to clean with its twist-off lid and removable filter. Additionally, you can even put this on-the-go tea infuser in your car’s cupholder as it’s designed to fit in most. Totally compatible with Nanopresso, it’s a convenient way to make coffee on the go.