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Morgan It is easier to use if you scoop some water into a cup and use the straw versus bending over and sucking up water directly from the pond/lake/river/stream/brook/whatever.
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Love I wish we had these in the Military in the 80's because drinking treated water in the field back then was not a pleasurable experience.
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Stacie Fits perfect. Sturdy. Good quality
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Kim McGowan These are great anywhere you go specially when youre hiking and you dont wanna lug up a bunch of water great product thank you