Includes one 500ml soft flask made from food-grade TPU, ensuring a safe and lightweight hydration solution. Designed for a wide range of temperatures, this soft water bottle is recommended for use between 0-40°C. Its durability and flexibility make it perfect for all weather conditions, ensuring you stay hydrated no matter the climate. Featuring a cap and a high-flow valve, this soft flask allows for quick and easy hydration without stopping. Simply bite the valve notch to drink, eliminating the need to remove your pack or pause your activity. This collapsible water bottle is an essential tool for outdoor enthusiasts. It's easy to drink from, leak-proof, and can be folded down when empty, making it space-efficient and convenient for runners, climbers, and adventurers. Versatile and practical, the soft flask is ideal for a variety of activities including marathons, climbing, and hiking. Its collapsible design ensures it fits easily in your running vest or hydration pack, enhancing your outdoor experience. Capacity: 500ml Temperature resistance: 0°C~40°C recommended (cannot be filled with boiling water) Color: As Shown Material: TPU+Silicone Package Contents: 1 x soft water bottle