Come and Check Our Branding Solutions.The water bag is made od soft ploymer without BPA and is safe, non toxic, envirmental and friendly biodegradable plastic. It occupied little space and is collapsible and easy to carry. It's suitable for geological disaster emergency water storage, outdoor activities, such as camping, hiking, BBQ, Picnic. it can be hung on the backpack with the free hanging buckle. Its optimum temperature ranges from 0 to 80 degrees. Price for over than 3000pcs is for sea shipment. Pls check inventory and detailed info before placing your orders.