Sminiker Outdoor Portable Water Bottle Stainless Steel Vacuum Insulated Travel Mug for Hot Coffee / Cold Liquids Large Capacity 27oz (800ml) Leaking Proof Design to ensure no leaks even this water bottle was turned upside down One_Hand Push Button: Equipped with a one hand push button and a vertical safety lock which marked with open and close, what a easier and quicker mechanism for customers Vacuum insulation technology for maximum temperature retention: keeps hot for 4 hours, warm for 12hours and cold for 12 hours Modern Stainless Steel construction with smooth glossy finish Capacity: 27oz (800ml)