Package contents Two foldable hydration flasks, each 150 ml (5 oz), in a transparent frosted color. Key specifications Temperature range: 0 to 60 degrees Celsius. Materials and safety Made from foodgrade TPU (thermoplastic polyurethane), BPF, safe and lightweight, easy to clean. Design and hydration performance SOFT FLASK for faster, easier hydration. Durable bite valve with dust cover. Bite silicone mouthpiece allows water to flow easily. What makes it practical Foldable design saves space when stored or packed. Lightweight and safe for everyday use and outdoor activities. Use scenarios Outdoor activities: hiking, cycling, or camping where compact, quick access to water is beneficial. Fitness and training: gym workouts or runs for convenient, onthego hydration. Travel and daily use: commuting, school, or office stays compact and easy to refill.