• Food-Grade Safe: Made of TPU material, 100% free of BPA and PVC, environmentally friendly and odorless. The flexible collapsible soft bottle is perfect for marathon running, cycling, etc
• Space Saving: Collapsible soft flask is compact and built for a long life for durable use. The running flask stands upright when it's full, and compresses to the min when it's empty, no burden for sports
• Easy drink: Light squeeze gives ample hydration, and high-flow bite valve auto-seals after each sip, without leaking. Convenient collapsible water bottle for daily, travel or outdoor sports
• Practical: The folding water bottle with straw/nozzle can be frozen and chilled overnight, easily getting a refreshing beverage on a hot day. ( Recommended used temperature: 0 - 40 ℃ )
• Easy Carrying: Ultra-light hand water bottle is easy to fold and carry. It can fit easily in most hydration vests, belts or pack pockets. Great soft hydration flask for men, women and kids