Package and Capacity --- The package include 3pcs foldable water bottles, there are 3 colors of white, blue and black with stripe printing. The capacity of each collapsible water pouch is 700ml. It is enough and convenient to use or share with your friends during outdoor activities.High Quality --- Our foldable water bags is made of PE+PA+PET three-layer composite material. It is safe and non-toxic, leak-proof and drop-proof, lightweight, waterproof, environmentally friendly and reusable with long service life.Multifunctional Hook --- Each of our portable Collapsible Water Bottle comes with a hook.It can be used as a carry handle or as a hook to attach the water bottle to a bag or bike. After drinking the water bag can fold up easily and fixed using the hook, which helps carry and store.Wide Application --- The foldable sports bottle is lightweight and portable at only 30g and perfect for travel camping, hiking , cycling, running, workouts gym, summer camp or other outdoor activities.