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The design is a portable bag. Most of the traditional outdoor sports water bottles usually use metal materials in order to preventing collisions,,and always is a cylindrical. But the mountain climber can not take the circular kettle which be placed in a backpack and water in bottle on the outside get cold easily. The portable bag looks like a bag with the use of nylon sticky button, can be directly attached to the inside of the clothes, and can be used at any time to take water.
Liaoning Shihua University
Liaoning fushun，China, China