Cello’s Flip style bottle is made of thermos steel technology. With this “Stainless Steel water bottle" from the house of "Cello", you can carry chilled water or your favorited beverage its Superior insulation performance-patented vacuum technology and food grade material keeps beverages Hot/Cold/Fresh for hours. Insulated double walled vacuum Bottle is designed for maximum temperature retention that Keep 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. Useful especially if you have babies and kids at home where in you have to have hot water handy. The Bottle comes with a smart carry pouch and a convenient carrying strap which makes it convenient to carry it outdoor. The bottle is easy to clean and maintain.