Doshisha Furufuru Bottle, 420ml, ON℃ZONE, Silver, OZFF420SV

Shake the bottle gently for 3 seconds to cool and warm your body. Shaking it makes it feel cool and refreshing. The temperature of the drink is transferred to the bottle, cooling your body from the inside and out. Shaking it makes the surface temperature cooler. Shaking it makes it feel nice and warm. Even in the freezing cold, shaking it will warm you up. Shaking it makes the surface temperature warmer. The Shaking Bottle has a hollow double-layered structure, so it is not a vacuum structure for keeping drinks hot or cold. It does not have the function to raise or lower the temperature of drinks.