If you buy a hot drink to take away, then it will often be served in a cardboard cup with a plastic lid. This arrangement is also good for warming the hands on a cold day.
Today’s invention extends this concept to create a new form of hot drink container.
This would be in the shape of a hotwater bottle, with moulded-in surface bumps to allow prolonged skin contact.
A flat, flexible bottle could be made using bio-inert plastic and, rather than being disposable, could be washed and stored in an outdoor coat for example. This would have a screw-fit seal and might be dispensed initially from a vending machine.
When you were standing at a sports event in winter or on an icy station platform you could insert the container into an interior pocket, or up your jersey, in between drinks.