Milton Thermosteel water flask is made from 18/8 stainless steel. This Insulated double walled vacuum water flask is designed for maximum temperature retention that keeps your favourite drinks hot/cold without altering their temperatures for a prolonged period of time. It will keep your drinks just the way you need them throughout the day. The taste and nutritive value of the drinks remains intact for a long time making the flasks very appropriate choice for storing beverages. 100% Food grade Stainless Steel: Milton as a brand, not only design products that are aesthetic in looks, but also products that are non-toxic in nature made up of food grade material. Company: If the name, Milton, brings on nostalgia about school-day tiffin meals, reminds you of daily office-squabbles for hot food from your colleagues lunch boxes, or invokes memories of so many houseware products that brought convenience to life, then you already know who we are and what we do.