🌊【100% BPA & PVC FREE】：The water bottle is made by 100% BPA and PVC free, durable, lightweight TPU material.Our water bottle is suitable for running belt and hydration vest.(Recommended for temperature:0-40 ℃/104℉) 🌊【3 SIZES TO CHOOSE】：We have 3 size water bottles with a dust cover:150ml/250ml/500ml.3 different sizes meet your needs.Perfect for strenuous activities,including running,hiking,cycling and any outdoor sports. 🌊【EASY TO CARRY】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 🌊【HOW TO USE】With wide opening design,you can pour water into the soft water bottle easily. The silicone bite value is with higher flow rate, quick on the teeth to get water. 🌊【CUSTOMER SERIVICE】Customer satisfaction is our first priority! If you have some trouble in our soft flask, please contact us once.We will get you back within 24 hours and try our best to make things right!