This nifty flask is a good purchase, worth your money spent. The thermosteel flask is made of stainless steel inside out. The shape and design of the flask is bit bullet shaped. The best feature of the flask is that it is vacuum insulated, which helps in keeping the liquid inside the flask warm for up to eighteen hours and keep the liquid cold for up to twenty four hours. The flask is a smart buy, used regularly to carry coffee to the workplace or while travelling outdoors. The silver color is simple and the steel makes sure that the body outside the flask does not heat up or get chilly based on the contents inside it. The flask can hold up to five hundred milliliters of liquid without any leakage problems. Check out more options in the flask, only @Home.