500ml lightweight soft flask that is ultra light and foldable to minimize bulk and save space. Provides a convenient moisture solution for running, hiking, cycling and outdoor adventures without adding weight. Key benefits and features - Lightweight and foldable design 500 ml capacity, ultra light and foldable so you can drink without adding bulk or weight. Easy to pack and carry during activity. - BPA free and safe hydration Made from high quality food grade TPU. BPA free, odor free and eco friendly. Safe and clean hydration while remaining firm enough for long activities. - Leakproof and easy-to-use lid Secure, easy-open lid with a leakproof design to prevent spills while moving. Quick, hassle-free hydration for athletes, marathon runners and outdoor enthusiasts. - Compatibility with hydration packs and bags Designed for most running jackets, hydration backpacks and belt bags. Flexible flask adapts to your gear and provides convenient water access without bouncing or adding bulk during high intensity. Use scenarios - Marathon or long-distance run: sip on the move without added weight or clutter in your pack. - Hiking or trail running: folds flat when empty and stows easily in pack pockets for quick access. - Cycling or outdoor training: stays secure in jackets, belts or backpacks to reduce bounce during fast movement.