Introducing the stylish and easy-to-carry Prestige Thermopro Vacuum Flask. It comes with double walled vacuum insulation and a copper layer that keeps your water hot or cold for hours so that you don't have to worry about re-heating and cooling again and again. Made of 304 grade stainless steel, the Prestige Thermopro Vacuum Flask keeps beverages safe with no contamination. With features like high quality stainless steel body and lid, carrying strap, etc, the Prestige Thermopro Vacuum Flask is an indispensable addition for your home or office.