600ml Portable Dual Lid 316 Vacuum Bottle

• Conduction: The vacuum between the walls prevents heat from conducting from the hotter side to the colder side through a physical medium. The material of the walls (stainless steel) is also a poor conductor compared to many other materials.
• Convection: With the vacuum, there’s no air or fluid to circulate and transfer heat by convection currents.
• Radiation: The inner and outer walls are often polished or coated (sometimes with a thin layer of silver) to reflect radiant heat. This further reduces heat transfer by radiation.

Common Uses:

• Hot Beverages: Keeping coffee, tea, hot chocolate, or soup hot for hours, perfect for commutes, offices, or outdoor activities.
• Cold Beverages: Keeping water, juice, iced tea, or soda cold and refreshing, ideal for workouts, travel, or summer days.