With this stainless steel water bottle from the house of Cello, you can carry chilled water or your favorited beverages conveniently. Its superior insulation performance-patented vacuum technology keeps beverages hot/cold/fresh for hours. The bottle is made of vacuum steel which maintains the temperature for long hours, insulated double walled vacuum bottle is designed for maximum temperature retention that keeps your favorited hot drinks without altering their temperatures for a prolonged period of time. You can avoid re-heating boiled water hence saves gas, effort and time.