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Hydration pack

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A hydration pack is a backpack or waistpack which contains a special of water, usually made of rubber or flexible plastic. The reservoir or bladder connects to a hose to allow the wearer to drink easily. Most hoses end with a "bite valve" that opens when the user bites down on it; the valve may be protected by a dust cover. Some hydration packs are insulated, to keep water from freezing on a cold day or becoming warm on a hot day. Reservoir sizes commonly range from 1.5 to 3.0 litres.

Hydration packs are commonly used in outdoor activities, such as hiking or military maneuvers, as well as in gyms.

Companies that manufacture hydration packs include (note: mostly external links)

 


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