ColorGray MaterialPolypropylene, Silicone Capacity1.3 pounds About this item Use safe siliconeThe water bottle is BPA-free and odorless, made of BPA-free food-grade organic silicone, approved by LFGB, SGS and has obtained FDA certification, to ensure safe drinking water, no PVC, latex, phthalate and plastic smell, etc. smell. It is safe and hygienic, as it uses a food-grade liquid silicone bottle and a food-grade plastic cap, children can also use it with confidence. LEAK-PROOF AND EASY TO CLEAN The patented sealing screw cap is used to eliminate leakage and splashing and effectively prevent the bottle from opening accidentally. The wide opening design makes it easier to clean the inside of the collapsible soft water container or add ice or lemon to it. For first use, it is recommended to soak in boiling water for 10 minutes for thorough cleaning. Cold and heat resistanceThis product has excellent heat resistance and can withstand temperatures from -50 to 200C. It has leak-proof and impact-resistant properties and is very suitable for all activities and sports. Even if it is squeezed or pressed, it will be tightly sealed. Even if you put it in a backpack or laptop bag, it will not leak. We do not recommend using it in liquids above 158F (70C) to avoid hot hands. Lightweight and convenientThe 20oz(600mL) portable silicone bottle is a collapsible type. It takes advantage of the properties of soft silicone and can be folded compactly after drinking, making it easy to carry. Allows you to hydrate your body anytime, anywhere.