The Hydro Flask® Standard Mouth Flex Straw Cap adds a significant insulating cover to a bottle.
Plastic construction.
Comes with a straw.
Dishwasher safe.
Measurements:Dimensions: 3 1/8 x 4 73/100 x 11 13/20 inWeight: 4 8/25 oz.
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Standard Mouth Flex Straw Cap
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Zappos
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