Baltra Double wall insulation Flip style bottle is made of thermos steel technology. With this Stainless Steel water bottle" . 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.Keeps hot for long hours and cold as well that helps you to save gas, time and efforts Superior Quality of stainless steel 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 is easy to clean and maintain. Fabricated inside and outside with food grade stainless steel material. It includes a liquid tight cap makes it leak resistant. Tough and durable. Includes a Cap cum cup for drinking hot liquids