Fill your cooler with the hot or cold beverage of your choice. Dual-walled & vacuum sealed for ultimate insulation, these keep your fluids icy cold for 24 hours and hot for 12 hours (please be careful – we mean piping hot!).
When needed, handwash your bottle with hot, soapy water and a bottle brush and leave it upside down to drain and dry. Before using it again, wash all soap out of the bottle, straw, and lid.