Safe silicone material made of BPA-free, odorless, food-grade organic silicone that is safe to drink. Patented sealing screw cap prevents leaks and splashes. Withstands temperatures from -50 to 200 degree centigrade for all activities and sports. Collapsible and lightweight, perfect for traveling, camping and sports. Can be used for hydration, cleaning and storage. 1 location includes the shipping cost to US. Orders of 600 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.