High Quality:Our foldable water bottle made of PE+PA+PET plastic composite material,safe and non-toxic,BPA free,light weight,reusable,healthy and environmentally friendly.Leak proof and fall proof. it is can featuring long service time. Convenient To Carry:The portable collapsible water pouch is perfect for everyday use!You can take your bottle with you to the classroom,work,etc,and each water bottle attached with a metal clip,easy for you to hang on your backpack or bike. Package Included:You will get 4PCS foldable water bottle,there are two colors of white and blue.Capacity of each one reusable soft flask water bag is 700ml /0.18gallon.Sufficient quantity, convenient for your use and replacement. Flexibility Design:Outdoor light drinking bag plastic created with flexibility in mind,when empty the water bottle can be flattened or rolled and when full can stand,be held or hung using the hook.And they are durable and easy to clean. Wide Application:The drink bottle pouches is suitable for park,camping,hiking,cycling,running, summer camp travel or other outdoor activities. You can also share these bottles with your friends if he likes outdoor sports.This is a great gift choice.