This collapsible SoftFlask carries 300mL of fluid. The unique shape allows this SoftFlask to slide easily in and out of a hydration pocket. Comes with
The UltrAspire Collapsible Bottle 500mL / 17 oz pairs a soft, low-volume flask with a bite valve for easy to drink hydration. The collapsible flask
UltrAspire Softflask w/Bite Cap 500mL / 17 oz
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UltrAspire 500ml Softflask with Straw ( 17 oz )
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HydraPak Nutrition Soft Flask 250ml