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Key Features

• SHRINKS AS YOU DRINK: This collapsible running water bottle and soft running water bottle compresses with every sip, getting lighter as you go and eliminating sloshing and bouncing whether you are mid-run, on the trail, cycling, or carrying a water pouch for running in any condition.
• FITS IN YOUR POCKET, YOUR VEST, OR YOUR HAND: These soft flask running bottles slot into any running vest water bottle pocket, shorts pocket, or ski jacket without bulk, fold flat when empty, and work as the ideal handheld water bottle for runners, hikers, climbers, and anyone needing a packable water bottle.
• LEAK-RESISTANT BITE VALVE: This spill proof water bottle and cycling water bottle only releases water when you bite and press, keeping your hydration backpack and runners belt completely dry between sips — no caps, no spills, and no interruptions on any run, ride, or hike in any terrain.
• ZERO BPA AND ZERO PVC, REUSABLE AND BUILT TO LAST: This reusable water bottle and soft water bottle is made from safe TPU with zero BPA and zero PVC, serving as a reliable runners water bottle, water pouch, and sports water bottle for runners, hikers, cyclists, and outdoor gear enthusiasts.
• ONE FLASK IN DIFFERENT SIZES, FROM 5K TO ULTRAMARATHON: This running flask and running bottle comes as a versatile water bottle pack in 8 capacities from 5 oz to 57.5 oz, covering every activity from a gym session to hiking essentials, camping gear, skiing, or a high-volume marathon water bottle for race day.

Specifications