Keep your pace and stay hydrated during the sauna It is said that the amount of sweat produced during the sauna is "about 300 ~ 400 ml" of water. That's where this sauna bottle comes in. By rehydrating according to the memory, it is possible to take 1~3 sets of hydration. The memory of the bottle is arranged so that you can rehydrate about twice in each set, before bathing and after bathing (after bathing in the open air). A narrow bottle that is easy to drink like a PET bottle, a lightweight and easy-to-carry handle, a sturdy Tritan bottle, and a detachable lid and spout unit for easy washing. (1) Before the sauna After soaking in the bathtub and warming up your body, please hydrate well before entering the sauna. (2) After the sauna After taking a cold bath, wipe your body well and take a break in the open air bath. Please stay hydrated after the sauna and during breaks.