Made of food grade PE material Made of clear non-toxic & odorless food grade PE plastic,BPA FREE and Phthalate-free, it''s very safe and clean,durable and reusable.5L+ 10L large capacity 2 pieces in one pack:5l +10l Large capacity, suitable for storing and transporting drinking water.Perfect for large families and large groups.A simple unfold fills the water bag for daily using.Space Saving Portable: Large nut cap with handle,reinforced thickened handles,lift easily. Wide bottle lip,very easy to fill and pour.You can be rolled up or flattened to save space when not in use. Convenience storage and carrying.Upgrade Design of The Leak-proof Cover Collapsible Water Container have a screw-on cap with a diameter of 3.5cm provides a leak-proof seal,without rubber ring seal design, large capacity leak-free.It can store water, juice, milk, beer, and so on.Suitable for All Kinds of Activities Ultra light foldable water bag compared with the solid bottles lighter and easier to carry.Perfect for outdoor activities like camping, RV, hunting, hiking, backpacking,fishing,picnics,BBQs,sports,parties.