• 【Material】The water bottle is made by BPA free, BPA-free silicone and TPU (thermoplastic polyurethane) for durability and flexibility and safe. New bottles have a slight odor. Putting rice water, green tea, sugar cubes, or vinegar in the bottle before first use can help reduce the odor. In addition, washing with baking soda is also recommended. Applicable temperature: 0-40℃.A dust-proof cover is attached to the drinking cup.Our Soft Flask is suitable for running belt and hydration vest.
• 【5oz/8oz/17oz】 The lightweight 5oz is perfect for replenishing water and energy needs on demanding long distances, the 8oz is ideal for short runs, and the 17oz will keep you hydrated on long trails!3 different sizes meet your needs.Perfect for strenuous　activities,including running,hiking,cycling and any outdoor sports.
• 【Just chew on the mouthpiece】When you chew on the mouthpiece, water comes out, even if your sucking ability is weak, you can easily rehydrate yourself! Perfect for sharing water with your buddies or pouring water on your body. Also recommended for elderly people.
• 【Comfort】Flexible, soft material fits snugly in the pocket. The flask compresses when you drink, so you don't have to worry about water splashing or shaking. The exact amount of water remaining can also be checked at a glance.
• 【HOW TO USE】With wide opening design,you can pour water into the soft water bottle easily. The soft flask is can be folded easily when it’s empty,easy to store,lightweight.Take up less space,the soft flask is great for outdoor activities