- Package includes: 1 soft flask (500ml/16oz) designed for active lifestyles. - Made from food-grade TPU (thermoplastic polyurethane) material, this flask is BPF-free, ensuring safety and lightweight convenience. Its super soft and durable design is perfect for hydration on the go. - Ideal for water temperatures between 0-60℃. Please avoid placing the flask in the freezer compartment. - The foldable design allows for easy carrying, whether the flask is full or empty. It compresses into a compact size, making it simple to store in a backpack or pocket. - Features a durable bite valve with a dust cover for hygienic use. Simply nibble or pinch the valve to easily dispense water, making hydration effortless during your activities. Use Scenarios: 1. Perfect for runners, this soft flask fits securely in your hand or pocket, providing easy access to hydration during long runs. 2. A great companion for hiking, the lightweight and foldable design makes it easy to carry on trails without adding bulk to your pack. 3. Ideal for gym-goers, this flexible flask can be stowed in any gym bag, ensuring you stay hydrated during workouts without the hassle of a rigid bottle.