The GiiVEN double walled vacuum insulated bottle is made of durable stainless steel that is safe for the environment and will not give you a metal aftertaste. The inner wall seizes the temperature within so that your hands won’t have to. This way it keeps your hot drinks like coffee and tea hot and your cold liquids cold. It maintains your drink’s temperature for many hours, comes in a 32-ounce size bottle, and gives you 3 different colors to choose from.