Have experience of the outdoors, probably all of water for outdoor sports has a profound impression, rely on plenty of water is to guarantee the quality of the outdoor life and health of the most basic conditions. Simple do and draft relying on water cannot make you thirst, it will be to help solve consumes more energy and bring health hazard. So in any book introduces the outdoor life book, how to obtain, transportation, preservation and reasonable allocation of limited all drinking water is an important chapter. Because in many cases have water to drink is crucial to the success of the event.
In fact, as a way to carry water pot of tools, the structure is simple, use also is more onefold. Historically, outdoor sports in the canteen is used by most similar gourd plants or move
