Endorphin Soft Flask

Custom-Built Soft Flask (450ml / 15oz) fits securely in the Endorphin Belt, keeping you hydrated without slowing you down.

• Collapsible Design: This flexible flask shrinks as you drink, minimizing sloshing and freeing up space in your belt as your run progresses.
• High-Flow Bite Valve: Equipped with a leak-resistant, self-sealing nozzle that provides quick sips without spillage.
• Durable & Safe Materials: Made from BPA-free, odor-resistant materials that withstand frequent use and multiple refills.

Features:

• 450 ml capacity
• Soft and flexible
• Twist-to-lock top: zero accidental leakage
• Self-sealing bite nozzle: effortless drinking on-the-go
• Easy-to-grip cap: simple to open, fill, and wash
• Free from BPA, phthalates, and PVC
• Color: light gray and transparent
• Weight: 33 g