Stainless steel vacuum insulated mug with push button closure. Lightweight and compact thermo mug fits in most car cup holders. The thermo mug is watertight when closed. With one push of a button, the cap opens and closes reliably. Drinking from the cap is possible around the entire circumference of the cap - no need to look for the opening for the drink. The removable cap can also be hygienically cleaned in the dishwasher. The thermos is designed for both cold and hot drinks.