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Safe non-toxic TPU material.
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Compressive resistance to abrasion.
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Tube connected to the bottom of the bladder.
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Can be put into backpack and backpack’s shoulder strap.
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Can be used to store water with -20 to 50 degree celsius.
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Foldable design, easy to carry.
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High quality hydration bladder modeled after the U.S. Military hydration bladder inserts.
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Equipped with a tube with a bite valve to drink, so you don’t need to hold it to drink.
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A switch on/off bite valve, convenient for control the flow of water.
Perfect replacement for 2.5L – 3L bladders