• SAFETY MATERIAL:Soft flask running bottles is made of TPU material,100% BPA & PVC FREE - No weird taste, and no unnecessary or harmful chemicals.
• EASY DRINK: Running Flask has light squeeze gives ample hydration, high-flow bite valve auto-seals after each bite, without leaking
• SPACE SAVER: The collapsible water bottle is foldable and can be fold into a running waist pack, wristbelt,fanny bag,running hydration vest, pack pockets, small sling bag etc.
• PRACTICAL: The hydration vest soft flask can be frozen and chilled overnight, easily get a refreshing beverage on the hot day(Recommended used temperature: -20 ℃ ~ 40 ℃ / -4℉ ~ 104℉)
• APPLICATION: Outdoor Collapsible Water Bottle is perfect for a marathon, running, adventuring, camping, trail running, hiking, cycling, climbing, travel, outdoor, sports, etc.